Work update @2016.06.27 and description of the Vivado HLS implementation of the two IP cores needed for the SVD Jacobi algorithm

1. Politecnico di Milano
Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB)
HAMSproject
Chiara Gatti
chiara1.gatti@mail.polimi.it
Guido Lanfranchi
guido2.lanfranchi@mail.polimi.it
6. IMPLEMENTATION
WEEKLY UPDATE
May 27th, 2016
NECST Lab, Politecnico di Milano

2. 2
Gantt Chart
WPs and tasks vs time
Context definition
Implementation
Validation
Dissemination
Legend:

3. 3
Last week
Implementation of the two IP
cores needed through Vivado
HLS
- Coefficient Computation
- Column Update

4. 4
Implementation
Jacobi method: accuracy and parallelism
for (n_times)
split matrix into columns
compute c,s for each couple
update columns
end
// until convergence
// multiply&accumulate
// streaming computation
Ãi Ãj
Coefficient
computation
Column
update
Ai Aj
c,s

5. 5
Coefficient
computation
multiplyx x x x x x x x
+ + + +
+ +
+
Ai
Aj
 set_directive_dataflow coefficientComputation
 set_directive_pipeline coefficientComputation
 set_directive_pipeline outerLoops
 set_directive_unroll innerLoops
 set_directive_interface –mode axis
accumulate
c,s

6. 6
Coefficient
computation
multiplyx x x x x x x x
+ + + +
+ +
+
Ai
Aj
 set_directive_dataflow coefficientComputation
 set_directive_pipeline coefficientComputation
 set_directive_pipeline outerLoops
 set_directive_unroll innerLoops
 set_directive_interface –mode axis
accumulate
performances
vs area
c,s

7. 7
 set_directive_dataflow columnUpdate
 set_directive_dataflow outerLoop
 set_directive_pipeline innerLoop
 set_directive_interface -mode axis
Column
update
Ai
Aj
Ãi
Ãj
- - t e m p - -
x x x x x x x x
c,s

8. 8
Next week
Integration of the two IP cores
through Vivado
- Microblaze processor on V7
- Data transfer through DMAs

9. 9
QUESTIONS?
Contact us!
HAMSproject
hams.necst@gmail.com
chiara1.gatti@mail.polimi.it
guido2.lanfranchi@mail.polimi.it
www.facebook.com/hams.project
https://twitter.com/HAMS_project
http://www.slideshare.net/HAMSproject
https://www.youtube.com/channel/UCaovqRpUc7D_Uf2WJHL0rvA