The Sethi-Ullman algorithm was invented by Ravi Sethi and Jeffrey Ullman to generate optimal machine code from abstract syntax trees that uses the fewest possible instructions. It works by traversing the AST and assigning each node the minimum number of registers needed to evaluate its subtrees. It then emits code in a way that evaluates subtrees requiring more registers first to minimize overall register usage. This optimal approach produces the shortest possible code sequence for an expression.
Using AWS services can help optimize costs through several best practices:
1. Use consolidated billing to share volume discounts and reserved instances across accounts.
2. Turn off underutilized instances using AWS Trusted Advisor or CloudWatch to save on costs.
3. Use reserved and spot instances to save up to 90% compared to on-demand instances.
4. Consider using managed services to automate tasks and focus on higher value work.
5. Control access to resources through IAM to track usage and prevent unnecessary provisioning.
6. Design for elasticity with auto scaling instead of over-provisioning for peak loads.
7. Create billing alerts to monitor spend and set thresholds to be notified
The document discusses cost optimization strategies for cloud computing on Amazon Web Services (AWS). It begins by introducing the total cost of ownership (TCO) model for comparing costs of on-premises infrastructure versus AWS. It then outlines the four pillars of cost optimization on AWS - right-sizing instances, using reserved instances, increasing infrastructure elasticity, and continuous measurement and improvement. The document provides a case study of a company that achieved over 80% in savings on their AWS costs by applying these strategies including right-sizing, reserved instances, and increased utilization. It emphasizes that while cost optimization sounds simple, it can be complex to implement at scale and requires tools, metrics, and governance.
Bonami.cz is an online community in the Czech Republic for fans of stylish home goods, furniture, and accessories. They present new designer products to their members every day and offer exclusive prices for club members to purchase featured items over the course of a week. Bonami.cz aims to promote quality products to their thousands of style-conscious members through social media, online ads, and magazines in order to tap into the 1.2 billion euro Czech market for home goods each year.
1. This document provides exam tips for unit 2, outlining the main question types and how to approach different parts of the exam. It focuses on calculations, comparing/describing data, commenting on data, and writing the essay question.
2. For calculations, it emphasizes showing workings and using correct numerical formatting. For comparing/describing data, it advises focusing on overall changes rather than year-by-year details or reasons. For commenting on data, it suggests using evidence from the data alongside acknowledging limitations.
3. The essay section stresses the need for two level 3 explanation points that also reference diagrams or case studies, plus acknowledging alternative perspectives with "however" statements for full marks.
The Sethi-Ullman algorithm was invented by Ravi Sethi and Jeffrey Ullman to generate optimal machine code from abstract syntax trees that uses the fewest possible instructions. It works by traversing the AST and assigning each node the minimum number of registers needed to evaluate its subtrees. It then emits code in a way that evaluates subtrees requiring more registers first to minimize overall register usage. This optimal approach produces the shortest possible code sequence for an expression.
Using AWS services can help optimize costs through several best practices:
1. Use consolidated billing to share volume discounts and reserved instances across accounts.
2. Turn off underutilized instances using AWS Trusted Advisor or CloudWatch to save on costs.
3. Use reserved and spot instances to save up to 90% compared to on-demand instances.
4. Consider using managed services to automate tasks and focus on higher value work.
5. Control access to resources through IAM to track usage and prevent unnecessary provisioning.
6. Design for elasticity with auto scaling instead of over-provisioning for peak loads.
7. Create billing alerts to monitor spend and set thresholds to be notified
The document discusses cost optimization strategies for cloud computing on Amazon Web Services (AWS). It begins by introducing the total cost of ownership (TCO) model for comparing costs of on-premises infrastructure versus AWS. It then outlines the four pillars of cost optimization on AWS - right-sizing instances, using reserved instances, increasing infrastructure elasticity, and continuous measurement and improvement. The document provides a case study of a company that achieved over 80% in savings on their AWS costs by applying these strategies including right-sizing, reserved instances, and increased utilization. It emphasizes that while cost optimization sounds simple, it can be complex to implement at scale and requires tools, metrics, and governance.
Bonami.cz is an online community in the Czech Republic for fans of stylish home goods, furniture, and accessories. They present new designer products to their members every day and offer exclusive prices for club members to purchase featured items over the course of a week. Bonami.cz aims to promote quality products to their thousands of style-conscious members through social media, online ads, and magazines in order to tap into the 1.2 billion euro Czech market for home goods each year.
1. This document provides exam tips for unit 2, outlining the main question types and how to approach different parts of the exam. It focuses on calculations, comparing/describing data, commenting on data, and writing the essay question.
2. For calculations, it emphasizes showing workings and using correct numerical formatting. For comparing/describing data, it advises focusing on overall changes rather than year-by-year details or reasons. For commenting on data, it suggests using evidence from the data alongside acknowledging limitations.
3. The essay section stresses the need for two level 3 explanation points that also reference diagrams or case studies, plus acknowledging alternative perspectives with "however" statements for full marks.
The document analyzes a film through several structuralist and narrative theories. It discusses how the film follows a linear narrative structure by revealing a secret over time until the twist ending. Initially, the ghost girl seems like the villain but the mother is revealed as the true villain. The film also features a false hero in the mother and creates initial confusion over the good and evil characters, as predicted by Todorov and Levi-Straus's theories. Barthes' theory of action codes is also reflected in how the adoption papers establish Amy's backstory without dialogue. The film challenges Faludi's idea that media portrays career women as unable to enjoy motherhood by featuring a working mother who provides for Amy.
This document discusses language translation systems. It describes three main types of translators: assemblers, interpreters, and compilers. Assemblers translate assembly language to machine code in a 1:1 manner. Interpreters translate high-level languages to machine code line by line. Compilers translate entire high-level programs to machine code in a single step. Interpreters allow for multi-platform code while compilers produce faster executable files.
The document summarizes plans to establish a free zone in Nouadhibou Bay, Mauritania. The free zone aims to (1) attract investment and promote private sector growth, (2) develop regional infrastructure, and (3) transform Nouadhibou into a competitive regional hub. Nouadhibou Bay offers strategic geographical advantages as a natural harbor between Africa and Europe with access to major shipping routes. The free zone framework provides tax and customs incentives for businesses in sectors like fishing, mining, tourism, and infrastructure. Authorities have progressed in defining the development concept and enacting relevant laws to realize the economic potential of Nouadhibou Bay.
Min presentasjon til Nærings- og Handelsdepartementets Innspillskonferanse for revidert Nasjonal Reiselivsstrategi. Om de viktigste digitale trendene som må hensyntas når ny strategi utmeisles. På 10 minutter.
av Anders Waage Nilsen og Katrine Mosfjeld.
Presentasjon av muligheter i samarbeidskonstellasjonen rundt FjordNett - ØstNett for de involverte reisemål - og fde som ønsker å bli en del av samarbeidet? Til konferanse ved samme navn, 17.juni 2010 i Bergen
The document analyzes a film through several structuralist and narrative theories. It discusses how the film follows a linear narrative structure by revealing a secret over time until the twist ending. Initially, the ghost girl seems like the villain but the mother is revealed as the true villain. The film also features a false hero in the mother and creates initial confusion over the good and evil characters, as predicted by Todorov and Levi-Straus's theories. Barthes' theory of action codes is also reflected in how the adoption papers establish Amy's backstory without dialogue. The film challenges Faludi's idea that media portrays career women as unable to enjoy motherhood by featuring a working mother who provides for Amy.
This document discusses language translation systems. It describes three main types of translators: assemblers, interpreters, and compilers. Assemblers translate assembly language to machine code in a 1:1 manner. Interpreters translate high-level languages to machine code line by line. Compilers translate entire high-level programs to machine code in a single step. Interpreters allow for multi-platform code while compilers produce faster executable files.
The document summarizes plans to establish a free zone in Nouadhibou Bay, Mauritania. The free zone aims to (1) attract investment and promote private sector growth, (2) develop regional infrastructure, and (3) transform Nouadhibou into a competitive regional hub. Nouadhibou Bay offers strategic geographical advantages as a natural harbor between Africa and Europe with access to major shipping routes. The free zone framework provides tax and customs incentives for businesses in sectors like fishing, mining, tourism, and infrastructure. Authorities have progressed in defining the development concept and enacting relevant laws to realize the economic potential of Nouadhibou Bay.
Min presentasjon til Nærings- og Handelsdepartementets Innspillskonferanse for revidert Nasjonal Reiselivsstrategi. Om de viktigste digitale trendene som må hensyntas når ny strategi utmeisles. På 10 minutter.
av Anders Waage Nilsen og Katrine Mosfjeld.
Presentasjon av muligheter i samarbeidskonstellasjonen rundt FjordNett - ØstNett for de involverte reisemål - og fde som ønsker å bli en del av samarbeidet? Til konferanse ved samme navn, 17.juni 2010 i Bergen
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