BKK16-410 SoC Idling & CPU Cluster PM
•
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The linux kernel has two distinct ways of managing idle. The CPUidle framework for CPUs and for all other devices: runtime PM combined with generic power domains (genpd). In addition, CPUidle is not scaling well for multi-cluster SMP systems and heterogeneous systems like big.LITTLE. To better manage idle for modern SoCs with a hierarchical structure, we are exploring extending runtime PM and genpd to CPUs so there is a unified framework for managing idle across all devices.
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BKK16-400A LuvOS and ACPI Compliance Testing
ARM server hardware will be shipping in 2016. An incredible amount of work has been done to get this far -- defining and implementing industry standards used by servers, development and testing of SoCs, and all sorts of Linux kernel work. So, how do we make sure we meet all these industry standards?
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Speakers:
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★ Resources ★
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★ Event Details ★
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★ Session Description ★
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★ Resources ★
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"Session ID: BUD17-120
Session Name: Linux-wpan: IEEE 802.15.4 and 6LoWPAN in the Linux Kernel - BUD17-120
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Track: LITE
★ Session Summary ★
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as border router for such networks.
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---------------------------------------------------
★ Resources ★
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Video: https://youtu.be/6YNeF2H2i-U
---------------------------------------------------
★ Event Details ★
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Erzsébet krt. 43-49,
1073 Hungary
---------------------------------------------------
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http://connect.linaro.org
---------------------------------------------------
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SoC Idling for unconf COSCUP 2016
1) The patches add support for managing CPU idle states using the generic PM domain framework and runtime PM. This provides a unified approach for idle management across all devices.
2) Key aspects include extending PM domains to support multiple idle levels, initializing CPU PM domains from device tree, and adding a governor to determine idle states based on wakeup times and QoS.
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★ Resources ★
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★ Event Details ★
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http://connect.linaro.org
BKK16-213 Where's the Hardware?
Linaro has multiple labs and board farms with varying purposes. This session will start with an overview of each of these, their locations, their focus, etc. It will then provide examples and direction on how a Member can add their hardware to a board farm. It will also provide an overview of how a Member or employee can navigate/leverage/check out a board for experimentation and usage (this varies based upon which lab/board farm is being considered, so all will be reviewed) in each of the farm locations. Finally, the session will provide pointers to any respective documentation, user guides, etc. for each of the locations.
Embedded Recipes 2019 - Introduction to JTAG debugging
This talk introduces JTAG debugging capabilities, both for debugging hardware and software. Marek first explains what the JTAG stands for and explains the operation of the JTAG state machine. This is followed by an introduction to free software JTAG tools, OpenOCD and urJTAG. Marek shortly explains how to debug software using those tools and how that ties into the JTAG state machine. However, JTAG was designed for testing hardware. Marek explains what boundary scan testing (BST) is, what are BSDL files and their format, and practically demonstrates how to blink an LED using BST and only free software tools.
Marek Vasut
BKK16-302: Android Optimizing Compiler: New Member Assimilation Guide
A tour of essential topics for working on the Android Optimizing Compiler, with a special emphasis on helping new engineers integrate and hit the ground running. Learn how to work on intrinsics, instruction simplification, platform specific optimizations, how to submit good patches, write Checker tests, analyse IR, take boot.oat measurements, and debug performance and execution issues with Streamline and GDB.
Linux-wpan: IEEE 802.15.4 and 6LoWPAN in the Linux Kernel - BUD17-120
"Session ID: BUD17-120
Session Name: Linux-wpan: IEEE 802.15.4 and 6LoWPAN in the Linux Kernel - BUD17-120
Speaker: Stefan Schmidt
Track: LITE
★ Session Summary ★
Adding support for IEEE 802.15.4 and 6LoWPAN to an embedded Linux system opens up new possibilities to communicate with tiny devices. The mainline kernel
supports the wireless protocols to connect such devices to the internet, acting
as border router for such networks.
This talk will show the current kernel support, how to enable and configure the
subsystems to use it and how to communicate between Linux and IoT operating
systems like RIOT, Contiki or Zephyr.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/bud17/bud17-120/
Presentation: https://www.slideshare.net/linaroorg/linuxwpan-ieee-802154-and-6lowpan-in-the-linux-kernel-bud17120
Video: https://youtu.be/6YNeF2H2i-U
---------------------------------------------------
★ Event Details ★
Linaro Connect Budapest 2017 (BUD17)
6-10 March 2017
Corinthia Hotel, Budapest,
Erzsébet krt. 43-49,
1073 Hungary
---------------------------------------------------
Keyword: linux-wpan, kernel, IEEE, Stefan Schmidt
http://www.linaro.org
http://connect.linaro.org
---------------------------------------------------
Follow us on Social Media
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BKK16-TR08 How to generate power models for EAS and IPA
Generating a specific power model for the platform is a pre-requirement for delpoying EAS and IPA. This makes understanding power models and how to generate parameters for them a useful skill. In this session we demonstrate how to use workload automation to gather power data from a board. We will then describe how to derive rough values for the EAS and IPA power models using nothing but this easily observable data. We will not rely on any information provided by OEM or SoC vendor.
LAS16-209: Finished and Upcoming Projects in LMG
LMG's finished and upcoming projects include:
- Memory allocator and file system analyses to reduce memory usage on low-RAM devices.
- Monthly LCR releases and migrating their builds to ci.linaro.org.
- Updating toolchains and enabling new hardware like the HiKey board in AOSP.
- Increasing participation in upstream projects like merging an SystemUI patch.
- Integrating features in AOSP like Energy Aware Scheduling, OP-TEE, and an Overlay Manager.
- Continuing work on the HiKey board in AOSP including new features, fixes, and upstreaming components.
Mirko Damiani - An Embedded soft real time distributed system in Go
An embedded system usually involves low level languages like C and highly customized hardware. In this talk we will see a use case of a soft real time system which was developed taking a very different approach, written in Go. We will see what are the advantages of this choice, along with its limits.
What's hot (20)
LAS16-402: ARM Trusted Firmware – from Enterprise to Embedded
LAS16-402: ARM Trusted Firmware – from Enterprise to Embedded
Kernel Recipes 2015: Speed up your kernel development cycle with QEMU
Kernel Recipes 2015: Speed up your kernel development cycle with QEMU
LAS16-200: SCMI - System Management and Control Interface
LAS16-200: SCMI - System Management and Control Interface
Las16 200 - firmware summit - ras what is it- why do we need it
Las16 200 - firmware summit - ras what is it- why do we need it
LAS16-105: Walkthrough of the EAS kernel adaptation to the Android Common Kernel
LAS16-105: Walkthrough of the EAS kernel adaptation to the Android Common Kernel
Embedded Recipes 2019 - Introduction to JTAG debugging
Embedded Recipes 2019 - Introduction to JTAG debugging
BKK16-302: Android Optimizing Compiler: New Member Assimilation Guide
BKK16-302: Android Optimizing Compiler: New Member Assimilation Guide
Linux-wpan: IEEE 802.15.4 and 6LoWPAN in the Linux Kernel - BUD17-120
Linux-wpan: IEEE 802.15.4 and 6LoWPAN in the Linux Kernel - BUD17-120
BKK16-TR08 How to generate power models for EAS and IPA
BKK16-TR08 How to generate power models for EAS and IPA
Mirko Damiani - An Embedded soft real time distributed system in Go
Mirko Damiani - An Embedded soft real time distributed system in Go
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SoC Idling for unconf COSCUP 2016
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This document describes the design and implementation of a service monitoring console within eBay's Turmeric SOA framework. Key components include the Service Query Metrics Service (SQMS) for logging metrics, a metrics storage provider interface, and the Monitoring Console (TMC) service for displaying metrics and building the dashboard UI using collected data. The system allows centralized collection of application logs and generation of custom reports. A partial offline data aggregator was also implemented to work with the Cassandra storage backend.
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100Gbps OpenStack For Providing High-Performance NFV
Slides at OpenStack Summit 2017 Sydney
Session Info and Video: https://www.openstack.org/videos/sydney-2017/100gbps-openstack-for-providing-high-performance-nfv
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SFO15-502: Using generic cpuidle framework for ARM/ARM64 in your driver
SFO15-502: Using generic cpuidle framework for ARM/ARM64 in your driver
Speaker: Daniel Lezcano
Date: September 25, 2015
★ Session Description ★
With the new generic cpuidle framework for ARM/ARM64, it is much easier to write your platform-specific driver. Learn how in this tutorial.
★ Resources ★
Video: https://www.youtube.com/watch?v=UoydE3nG2e8
Presentation: http://www.slideshare.net/linaroorg/sfo15502-using-generic-cpuidle-framework-for-armarm64-in-your-driver
Etherpad: pad.linaro.org/p/sfo15-502
Pathable: https://sfo15.pathable.com/meetings/303093
★ Event Details ★
Linaro Connect San Francisco 2015 - #SFO15
September 21-25, 2015
Hyatt Regency Hotel
http://www.linaro.org
http://connect.linaro.org
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HKG15-107: ACPI Power Management on ARM64 Servers
---------------------------------------------------
Speaker: Ashwin Chaugule
Date: February 9, 2015
---------------------------------------------------
★ Session Summary ★
Status of CPPC with runtime PM and discussion on idle PM with ACPI
--------------------------------------------------
★ Resources ★
Pathable: https://hkg15.pathable.com/meetings/250767
Video: https://www.youtube.com/watch?v=eDDgYIkUHLI
Etherpad: http://pad.linaro.org/p/hkg15-107
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2015 - #HKG15
February 9-13th, 2015
Regal Airport Hotel Hong Kong Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
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This document discusses techniques for offloading I/O transactions from the CPU to improve performance. It introduces iDMA which allows direct communication between I/O devices and system memory without CPU involvement. It also describes the "Hot Potato" approach which treats payload data as a "hot potato" passed directly between devices without CPU processing. Finally, it proposes "Device2Device" (D2D) communication which allows direct transfer of data between I/O devices like sending video data directly from a SSD to a NIC without using system memory or the CPU. Measurements show these approaches can significantly reduce latency and improve throughput and power efficiency compared to traditional CPU-managed I/O.
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ALSF13: Xen on ARM - Virtualization for the Automotive Industry - Stefano Sta...
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µCLinux on Pluto 6 Project presentation
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100Gbps OpenStack For Providing High-Performance NFV
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Deep Learning Neural Network Acceleration at the Edge - Andrea Gallo
Short
The growing amount of data captured by sensors and the real time constraints imply that not only big data analytics but also Machine Learning (ML) inference shall be executed at the edge. The multiple options for neural network acceleration in Arm-based platforms provide an unprecedented opportunity for new intelligent devices. It also raises the risk of fragmentation and duplication of efforts when multiple frameworks shall support multiple accelerators.
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Abstract
The dramatically growing amount of data captured by sensors and the ever more stringent requirements for latency and real time constraints are paving the way for edge computing, and this implies that not only big data analytics but also Machine Learning (ML) inference shall be executed at the edge. The multiple options for neural network acceleration in recent Arm-based platforms provides an unprecedented opportunity for new intelligent devices with ML inference. It also raises the risk of fragmentation and duplication of efforts when multiple frameworks shall support multiple accelerators.
Andrea Gallo, Linaro VP of Segment Groups, will summarise the existing NN frameworks, model description formats, accelerator solutions, low cost development boards and will describe the efforts underway to identify the best technologies to improve the consolidation and enable the competitive innovative advantage from all vendors.
Audience
The session will be useful for executives to engineers. Executives will gain a deeper understanding of the issues and opportunities. Engineers at NN acceleration IP design houses will take away ideas for how to collaborate in the open source community on their area of expertise, how to evaluate the performance and accelerate multiple NN frameworks without modifying them for each new IP, whether it be targeting edge computing gateways, smart devices or simple microcontrollers.
Benefits to the Ecosystem
The AI deep learning neural network ecosystem is starting just now and it has similar implications with open source as GPU and video accelerators had in the early days with user space drivers, binary blobs, proprietary APIs and all possible ways to protect their IPs. The session will outline a proposal for a collaborative ecosystem effort to create a common framework to manage multiple NN accelerators while at the same time avoiding to modify deep learning frameworks with multiple forks.
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Bud17 113: distribution ci using qemu and open qa
“Delivering a well working distribution is hard. There are a lot of different hardware platforms that need to be verified and the software stack is in a big flux during development phases. In rolling releases, this gets even worse, as nothing ever stands still. The only sane answer to that problem are working Continuous Integration tests. The SUSE way to check whether any change breaks normal distribution behavior is OpenQA. Using OpenQA we can automatically run tests that hard working QA people did manually in the old days. That way we have fast enough turnaround times to find and reject breaking changes This session shows how OpenQA works, what pitfalls we had to make ARM work with OpenQA and what we’re doing to improve it for ARM specific use cases.”
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Speaker: Renato Golin
Speaker Bio:
He started programming in the late 80's in C for PCs after a few years playing with 8-bit computers, but he only started programming professionally in the late 90's during the .com bubble. After many years working on Internet's back-end, he moved to UK and worked a few years on bioinformatics at EBI before joining ARM, where he worked on the DS-5 debugger and on the EDG-to-LLVM bridge, where he became the LLVM Tech Lead. Recently, he worked with large clusters and big data at HPCC before moving to Linaro.
Talk Title: OpenHPC Automation with Ansible
Talk Abstract: "In order to test OpenHPC packages and components and to use it as a
platform to benchmark HPC applications, Linaro is developing an automated deployment strategy, using Ansible, Mr-Provisioner and Jenkins, to install the
OS, OpenHPC and prepare the environment on varied architectures (Arm, x86). This work is meant to replace the existing ageing Bash-based recipes upstream while still keeping the documents intact. Our aim is to make it easier to vary hardware configuration, allow for different provisioning techniques and mix internal infrastructure logic to different labs, while still using the same recipes. We hope this will help more people use OpenHPC with a better out-of-the-box experience and with more robust results"
HPC network stack on ARM - Linaro HPC Workshop 2018
Speaker: Pavel Shamis
Company: Arm
Speaker Bio:
"Pavel is a Principal Research Engineer at ARM with over 16 years of experience in development HPC solutions. His work is focused on co-design software and hardware building blocks for high-performance interconnect technologies, development communication middleware and novel programming models. Prior to joining ARM, he spent five years at Oak Ridge National Laboratory (ORNL) as a research scientist at Computer Science and Math Division (CSMD). In this role, Pavel was responsible for research and development multiple projects in high-performance communication domain including: Collective Communication Offload (CORE-Direct & Cheetah), OpenSHMEM, and OpenUCX. Before joining ORNL, Pavel spent ten years at Mellanox Technologies, where he led Mellanox HPC team and was one of the key driver in enablement Mellanox HPC software stack, including OFA software stack, OpenMPI, MVAPICH, OpenSHMEM, and other.
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"
Talk Title: HPC network stack on ARM
Talk Abstract:
Applications, programming languages, and libraries that leverage sophisticated network hardware capabilities have a natural advantage when used in today¹s and tomorrow's high-performance and data center computer environments. Modern RDMA based network interconnects provides incredibly rich functionality (RDMA, Atomics, OS-bypass, etc.) that enable low-latency and high-bandwidth communication services. The functionality is supported by a variety of interconnect technologies such as InfiniBand, RoCE, iWARP, Intel OPA, Cray¹s Aries/Gemini, and others. Over the last decade, the HPC community has developed variety user/kernel level protocols and libraries that enable a variety of high-performance applications over RDMA interconnects including MPI, SHMEM, UPC, etc. With the emerging availability HPC solutions based on ARM CPU architecture it is important to understand how ARM integrates with the RDMA hardware and HPC network software stack. In this talk, we will overview ARM architecture and system software stack, including MPI runtimes, OpenSHMEM, and OpenUCX.
It just keeps getting better - SUSE enablement for Arm - Linaro HPC Workshop ...
Speaker: Jay Kruemcke
Speaker Company: SUSE
Bio:
"Jay is responsible for the SUSE Linux server products for High Performance Computing, 64-bit ARM systems, and SUSE Linux for IBM Power servers.
Jay has built an extensive career in product management including using social media for client collaboration, product positioning, driving future product directions, and evangelizing the capabilities and future directions for dozens of enterprise products.
"
Talk Title: It just keeps getting better - SUSE enablement for Arm
Talk Abstract:
SUSE has been delivering commercial Linux support for Arm based servers since 2016. Initially the focus was on high end servers for HPC and Ceph based software defined storage. But we have enabled a number of other Arm SoCs and are even supporting the Raspberry Pi. This session will cover the SUSE products that are available for the Arm platform and view to the future.
Intelligent Interconnect Architecture to Enable Next Generation HPC - Linaro ...
Speakers: Gilad Shainer and Scot Schultz
Company: Mellanox Technologies
Talk Title: Intelligent Interconnect Architecture to Enable Next
Generation HPC
Talk Abstract:
The latest revolution in HPC interconnect architecture is the development of In-Network Computing, a technology that enables handling and accelerating application workloads at the network level. By placing data-related algorithms on an intelligent network, we can overcome the new performance bottlenecks and improve the data center and applications performance. The combination of In-Network Computing and ARM based processors offer a rich set of capabilities and opportunities to build the next generation of HPC platforms.
Gilad Shainer Bio:
Gilad Shainer has served as Mellanox's vice president of marketing since March 2013. Previously, Mr. Shainer was Mellanox's vice president of marketing development from March 2012 to March 2013. Mr. Shainer joined Mellanox in 2001 as a design engineer and later served in senior marketing management roles between July 2005 and February 2012. Mr. Shainer holds several patents in the field of high-speed networking and contributed to the PCI-SIG PCI-X and PCIe specifications. Gilad Shainer holds a MSc degree (2001, Cum Laude) and a BSc degree (1998, Cum Laude) in Electrical Engineering from the Technion Institute of Technology in Israel.
Scot Schultz Bio:
Scot Schultz is a HPC technology specialist with broad knowledge in operating systems, high speed interconnects and processor technologies. Joining the Mellanox team in 2013, Schultz is 30-year veteran of the computing industry. Prior to joining Mellanox, he spent the past 17 years at AMD in various engineering and leadership roles in the area of high performance computing. Scot has also been instrumental with the growth and development of various industry organizations including the Open Fabrics Alliance, and continues to serve as a founding board-member of the OpenPOWER Foundation and Director of Educational Outreach and founding member of the HPC-AI Advisory Council.
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Sant...
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Santa Clara 2018
Bio: "Yutaka Ishikawa is the project leader of developing the post K
supercomputer. From 1987 to 2001, he was a member of AIST (former
Electrotechnical Laboratory), METI. From 1993 to 2001, he was the
chief of Parallel and Distributed System Software Laboratory at Real
World Computing Partnership. He led development of cluster system
software called SCore, which was used in several large PC cluster
systems around 2004. From 2002 to 2014, he was a professor at the
University Tokyo. He led a project to design a commodity-based
supercomputer called T2K open supercomputer. As a result, three
universities, Tsukuba, Tokyo, and Kyoto, obtained each supercomputer
based on the specification in 2008. He was also involved with the
design of the Oakleaf-PACS, the successor of T2K supercomputer in both
Tsukuba and Tokyo, whose peak performance is 25PF."
Session Title: Post-K and Arm HPC Ecosystem
Session Description:
"Post-K, a flagship supercomputer in Japan, is being developed by Riken
and Fujitsu. It will be the first supercomputer with Armv8-A+SVE.
This talk will give an overview of Post-K and how RIKEN and Fujitsu
are currently working on software stack for an Arm architecture."
Andrew J Younge - Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Su...
Event: Arm Architecture HPC Workshop by Linaro and HiSilicon
Location: Santa Clara, CA
Speaker: Andrew J Younge
Talk Title: Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Supercomputing
Talk Desc: The Vanguard program looks to expand the potential technology choices for leadership-class High Performance Computing (HPC) platforms, not only for the National Nuclear Security Administration (NNSA) but for the Department of Energy (DOE) and wider HPC community. Specifically, there is a need to expand the supercomputing ecosystem by investing and developing emerging, yet-to-be-proven technologies and address both hardware and software challenges together, as well as to prove-out the viability of such novel platforms for production HPC workloads.
The first deployment of the Vanguard program will be Astra, a prototype Petascale Arm supercomputer to be sited at Sandia National Laboratories during 2018. This talk will focus on the arthictecural details of Astra and the significant investments being made towards the maturing the Arm software ecosystem. Furthermore, we will share initial performance results based on our pre-general availability testbed system and outline several planned research activities for the machine.
Bio: Andrew Younge is a R&D Computer Scientist at Sandia National Laboratories with the Scalable System Software group. His research interests include Cloud Computing, Virtualization, Distributed Systems, and energy efficient computing. Andrew has a Ph.D in Computer Science from Indiana University, where he was the Persistent Systems fellow and a member of the FutureGrid project, an NSF-funded experimental cyberinfrastructure test-bed. Over the years, Andrew has held visiting positions at the MITRE Corporation, the University of Southern California / Information Sciences Institute, and the University of Maryland, College Park. He received his Bachelors and Masters of Science from the Computer Science Department at Rochester Institute of Technology (RIT) in 2008 and 2010, respectively.
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Session ID: HKG18-501
Session Name: HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Speaker: Chris Redpath
Track: Mobile, Kernel
★ Session Summary ★
This session will introduce the changes to EAS planned for 4.14 kernel, and how Arm hopes that EAS will develop in future. EAS has already evolved from an Arm/Linaro joint project to involving a much wider community of SoC vendors, Google and interested device manufacturers. We will highlight the product-specific pieces remaining in the Android Common Kernel EAS implementation, and our plans to provide an upstreaming plan for each product feature. In particular, the new 'simplified energy model' is designed to provide mainline-friendliness and comparable performance using a simple DT expression of cpu power/performance.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-501/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-501.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-501.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Mobile, Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
HKG18-100K1 - George Grey: Opening Keynote
Session ID: HKG18-100K1
Session Name: HKG18-100K1 - George Grey: Opening Keynote
Speaker: George Grey
Track: Keynote
★ Session Summary ★
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-100k1/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-100k1.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-100k1.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Keynote
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
HKG18-318 - OpenAMP Workshop
"Session ID: HKG18-318
Session Name: HKG18-318 - OpenAMP Workshop
Speaker: Wendy Liang
Track: Ecosystem Day
★ Session Summary ★
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-318/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-318.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-318.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Ecosystem Day
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
"Session ID: HKG18-501
Session Name: HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Speaker: Chris Redpath
Track: Mobile, Kernel
★ Session Summary ★
This session will introduce the changes to EAS planned for 4.14 kernel, and how Arm hopes that EAS will develop in future. EAS has already evolved from an Arm/Linaro joint project to involving a much wider community of SoC vendors, Google and interested device manufacturers. We will highlight the product-specific pieces remaining in the Android Common Kernel EAS implementation, and our plans to provide an upstreaming plan for each product feature. In particular, the new 'simplified energy model' is designed to provide mainline-friendliness and comparable performance using a simple DT expression of cpu power/performance.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-501/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-501.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-501.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Mobile, Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-315 - Why the ecosystem is a wonderful thing, warts and all
"Session ID: HKG18-315
Session Name: HKG18-315 - Why the ecosystem is a wonderful thing warts and all
Speaker: Andrew Wafaa
Track: Ecosystem Day
★ Session Summary ★
The Arm ecosystem is a vibrant place, but it's not always smooth sailing. This presentation will go through the highs and lows of getting the ecosystem fully Arm enabled.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-315/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-315.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-315.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Ecosystem Day
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18- 115 - Partitioning ARM Systems with the Jailhouse Hypervisor
"Session ID: HKG18-115
Session Name: HKG18-115 - Partitioning ARM Systems with the Jailhouse Hypervisor
Speaker: Jan Kiszka
Track: Security
★ Session Summary ★
The open source hypervisor Jailhouse provides hard partitioning of multicore systems to co-locate multiple Linux or RTOS instances side by side. It aims at low complexity and minimal footprint to achieve deterministic behavior and enable certifications according to safety or security standards. In this session, we would like to look at the ARM-specific status of Jailhouse and discuss applications, to-dos and possible collaborations around it with the ARM community. The session is intended to be half presentation, half Q&A / discussion.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-115/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-115.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-115.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Security
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-TR08 - Upstreaming SVE in QEMU
"Session ID: HKG18-TR08
Session Name: HKG18-TR08 - Upstreaming SVE in QEMU
Speaker: Alex Bennée,Richard Henderson
Track: Enterprise
★ Session Summary ★
ARM's Scalable Vector Extensions is an innovative solution to processing highly data parallel workloads. While several out-of-tree attempts at implementing SVE support for QEMU existed, we took a fundamentally different approach to solving key challenges and therefore pursued a from-scratch QEMU SVE implementation in Linaro. Our strategic choice was driven by several factors. First as an ""upstream first"" organisation we were focused on a solution that would be readily accepted by the upstream project. This entailed doing our development in the open on the project mailing lists where early feedback and community consensus can be reached.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-tr08/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-tr08.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-tr08.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Enterprise
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-113- Secure Data Path work with i.MX8M
"Session ID: HKG18-113
Session Name: HKG18-113 - Secure Data Path work with i.MX8M
Speaker: Cyrille Fleury
Track: Digital Home
★ Session Summary ★
NXP presentation on Secure Data Path work with i.MX8M Soc. Demonstrate 4K PlayReady playback with Android 8.1 running on i.MX8M. Focus on security (MS SL3000 and Widevine level 1)
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-113/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-113.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-113.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Digital Home
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-120 - Devicetree Schema Documentation and Validation
"Session ID: HKG18-120
Session Name: HKG18-120 - Structured Documentation and Validation for Device Tree
Speaker: Grant Likely
Track: Kernel
★ Session Summary ★
Devicetree has become the dominant hardware configuration language used when building embedded systems. Projects using Devicetree now include Linux, U-Boot, Android, FreeBSD, and Zephyr. However, it is notoriously difficult to write correct Devicetree data files. The dtc tools perform limited tests for valid data, and there there is not yet a way to add validity test for specific hardware descriptions. Neither is there a good way to document requirements for specific bindings. Work is underway to solve these problems. This session will present a proposal for adding Devicetree schema files to the Devicetree toolchain that can be used to both validate data and produce usable documentation.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-120/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-120.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-120.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-223 - Trusted FirmwareM: Trusted boot
"Session ID: HKG18-223
Session Name: HKG18-223 - Trusted Firmware M : Trusted Boot
Speaker: Tamas Ban
Track: LITE
★ Session Summary ★
An overview of the trusted boot concept and firmware update on the ARMv8-M based platform and how MCUBoot acts as a BL2 bootloader for TF-M.
Trusted Firmware M
In October 2017, Arm announced the vision of Platform Security Architecture (PSA) - a common framework to allow everyone in the IoT ecosystem to move forward with stronger, scalable security and greater confidence. There are three key stages to the Platform Security Architecture: Analysis, Architecture and Implementation which are described at https://developer.arm.com/products/architecture/platform-security-architecture.
_Trusted Firmware M, i.e. TF-M, is the Arm project to provide an open source reference implementation firmware that will conform to the PSA specification for M-Class devices. Early access to TF-M was released in December 2017 and it is being made public during Linaro Connect. The implementation should be considered a prototype until the PSA specifications reach release state and the code aligns._
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-223/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-223.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-223.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: LITE
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
More from Linaro (20)
Deep Learning Neural Network Acceleration at the Edge - Andrea Gallo
Deep Learning Neural Network Acceleration at the Edge - Andrea Gallo
Arm Architecture HPC Workshop Santa Clara 2018 - Kanta Vekaria
Arm Architecture HPC Workshop Santa Clara 2018 - Kanta Vekaria
Huawei’s requirements for the ARM based HPC solution readiness - Joshua Mora
Huawei’s requirements for the ARM based HPC solution readiness - Joshua Mora
OpenHPC Automation with Ansible - Renato Golin - Linaro Arm HPC Workshop 2018
OpenHPC Automation with Ansible - Renato Golin - Linaro Arm HPC Workshop 2018
HPC network stack on ARM - Linaro HPC Workshop 2018
HPC network stack on ARM - Linaro HPC Workshop 2018
It just keeps getting better - SUSE enablement for Arm - Linaro HPC Workshop ...
It just keeps getting better - SUSE enablement for Arm - Linaro HPC Workshop ...
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Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Sant...
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Sant...
Andrew J Younge - Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Su...
Andrew J Younge - Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Su...
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
HKG18-315 - Why the ecosystem is a wonderful thing, warts and all
HKG18-315 - Why the ecosystem is a wonderful thing, warts and all
HKG18- 115 - Partitioning ARM Systems with the Jailhouse Hypervisor
HKG18- 115 - Partitioning ARM Systems with the Jailhouse Hypervisor
HKG18-120 - Devicetree Schema Documentation and Validation
HKG18-120 - Devicetree Schema Documentation and Validation
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For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.Recently uploaded (20)
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BKK16-410 SoC Idling & CPU Cluster PM
- 1. Presented by Date Event SoC Idling & CPU Cluster PM Ulf Hansson Lina Iyer Kevin Hilman BKK16-410 March 10, 2016 Linaro Connect BKK16
- 2. SoC Idling & CPU Cluster PM ● Idle management of devices via runtime PM and the generic PM domain (genpd). A proven concept! ● Idle management of CPUs and clusters. Let’s have one “idle” to rule them all!
- 3. Background ● Runtime PM ● System PM ● DevPM QoS ● Generic PM domain (genpd)
- 4. Users of genpd SH-Mobile S3C64xx Exynos Linux 3.1 Linux 3.4 SH-Mobile Linux 3.18 SH-Mobile S3C64xx Exynos IMX Ux500 ZX Qcom BCM Dove Mediatek Rockchip Tegra Linux 4.5 SH-Mobile S3C64xx Exynos
- 5. Highlights ● Genpd: Maintained by Ulf, Kevin and Rafael ● Various consolidation, fixing issues and regressions ● Genpd: Removing intermediate states from the power off sequence (4.3) ○ http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/base?id=ba2bbfbf63075850bb523e2adb815d45e3509995 ● Genpd: Enabling the runtime PM centric approach ● Genpd: Support for multiple retention states (4.6)
- 6. Next steps ● Add genpd power statistics ● Avoid needless wakeup in System PM TODAY NEXT
- 7. CPU Cluster PM - Background and motivation More... ● CPUs ● integrated devices ● power domains ● micro controllers ● firmware Kernel needs to evolve...
- 8. Idle management today ● The linux kernel has two distinct ways of managing idle. The CPUidle framework for CPUs and for all other devices: runtime PM combined with generic power domains (genpd). In addition, CPUidle is not scaling well for multi-cluster SMP systems and heterogeneous systems like big.LITTLE. To better manage idle for modern SoCs with a hierarchical structure, we are exploring extending runtime PM and genpd to CPUs so there is a unified framework for managing idle across all devices.
- 9. ? CPUIDLE CPUIDLE SoC Idle: Today CPU CPU ? ? CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPU CLUSTER COHERENCY Platform hacks
- 10. CPUIDLE CPUIDLE SoC Idle: With CPU PM CPU CPU Runtime PM GenPD CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPU PM Platform Driver CPU CLUSTER & COHERENCY
- 11. Recipe Start with upstream kernel (v4.5-rc3) ● Prep ○ Extend genpd domains to support multiple idle levels ¹ ○ Extend genpd to support IRQ-safe PM domains ● Add ○ Add CPU PM domain framework ○ Call Runtime PM from cpuidle ● Sample ○ Using CPU PM domains - OS-Initiated ○ DT changes for SoC ¹ Patches slated for merge in v4.6
- 12. ● Init ○ Read domain topology from DT ○ Setup genpd PM domains ● Genpd ○ Last man determination ● Genpd Gov: ○ Determine cluster idle state CPU PM framework GenPD governor Init GenPD GenPD Platform Driver CPU PM
- 13. CPU PM framework ● Better than coupled cpuidle ○ CPUs are not woken up when ready to enter coupled state ○ Handles multi-level CPU-Domain topology ● Is not MCPM ○ MCPM handles low level race between CPUs ○ Some v7 SoCs may still need MCPM with CPU PM framework
- 14. PSCI: PC vs OSI ● Platform Coordinated (PC) ○ Default PSCI mode ○ F/W decides on CPU- Domain idle state when all CPUs are idle ○ F/W does not know of Linux CPU QoS requirements, latency and next CPU wakeup ○ F/W decision to power off domain may be detrimental to power and performance ● OS-Initiated (OSI) ○ Optional from PSCI v1.0 onwards ○ Linux decides the CPU- Domain idle state ○ The last CPU in a domain provides the idle state of the cluster, coherency ○ Linux can make a wise choice of CPU-Domain idle state knowing QoS, latency, predicted CPU wakeup etc.
- 15. OSI using CPU PM ● Query PSCI_FEATURES in F/W for OSI support ● Setup CPU PM Domains ○ Reads State-IDs for Cluster and Coherency idle levels from DT ● Callbacks for Domain ON/OFF ○ State-IDs passed from CPU PM ○ Aggregate State-IDs against the CPU ● CPU calls F/W with Composite State-ID ● NO SoC specific drivers needed for ARM v8
- 16. PSCI: Composite State-ID CPU CLUSTER COHERENCY COHERENCY CLUSTER CPU ● CPUidle: CPU state ● CPU PM Gov: Cluster state ● CPU PM Gov: Coherency state cpuidle Domain00 Domain10 Last CPU’ s PSCI arg
- 17. Changes for Vendors: ARM64 ● DT ○ Domain hierarchy ○ Domain idle states ● Driver ○ None if F/W supports OSI
- 18. Changes for Vendors: ARM32 ● DT ○ Domain hierarchy ○ Domain idle states ● Driver ○ Handle power ON/OFF callbacks ○ MCPM or any race avoiding last man logic ○ Revisit SoC specific CPUidle hacks
- 19. Genpd: IRQ-Safe Restriction ● IRQ-safe domains can only have IRQ-safe sub-domains ● Other cases with domains and devices remain the same
- 20. Status of patches ● PM / Domains: Multiple genpd states: Merged ● PM / Domains: IRQ safe domains: Under review ● CPU PM domains: New framework for CPU clusters : Under review ● PSCI 1.0 OS-Initiated: Support for domain hierarchy: Under review RFC submission on ML: [1]. RFC v3: http://www.spinics.net/lists/linux-arm-msm/msg19663.html Sample ARM v7a implementation [3]. https://git.linaro.org/people/lina.iyer/linux-next.git/shortlog/refs/heads/genpd-psci-8084
- 21. Results ● SoC idle saves power when CPUs are online ○ Critical power saving comes from powering off caches and peripheral h/w ○ ~20 mA @800 Mhz of power saving at idle ● ~5 s addition to idle enter path ○ Exit latency depends on what happens at domain OFF ● Implemented and tested on DB410c / 96Board