| Index | Recent Threads | Unanswered Threads | Who's Active | Guidelines | Search |
 |
World Community Grid Forums
Category: Support
Forum: GPU Support Forum
Thread: More efficiency please |
| No member browsing this thread |
|
Thread Status: Active Total posts in this thread: 9
|
|
| Author |
|
|
cw64
Advanced Cruncher Joined: Oct 6, 2007 Post Count: 120 Status: Offline Project Badges: 
|
In the spirit of squeezing out every last processor cycle possible I have some questions about the HCC GPU app.
----------------------------------------My experience with GPU processing has been that they don't require a whole CPU core to run (leaving a core free). The HCC GPU app runs on CPU then GPU then CPU. During the GPU phase the assigned CPU is mostly not in use. Can anything be done here? Can the current CPU phases be made to run on the GPU? Can the app release the CPU to BOINC to work temporarily on another CPU job during the GPU phase? Even better can the app work on a CPU part of another HCCGPU task while the GPU is processing? Keeping the assigned CPU at 100% output. TaskA CPU1-> TaskA GPU ->TaskA CPU2->TaskB GPU ->TaskB CPU2->Task C GPU -> etc.Can the CPU phases be done off the grid (i.e. in house) leaving a pure GPU WU? Can the current WU be reworked into 3 (one for each phase. Like DDDT one result being the input of the next task)? You could stack several jobs together to offset the extra bandwidth this would necessitate.  [Edit 1 times, last edit by cw64 at Oct 13, 2012 2:03:38 PM] |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
My 4 core runs 4 CPU WUs (DSFL) and 1 GPU simultaneously.....
 |
||
|
|
nanoprobe
Master Cruncher Classified Joined: Aug 29, 2008 Post Count: 2998 Status: Offline Project Badges: 
|
In the spirit of squeezing out every last processor cycle possible I have some questions about the HCC GPU app. My experience with GPU processing has been that they don't require a whole CPU core to run (leaving a core free). The HCC GPU app runs on CPU then GPU then CPU. During the GPU phase the assigned CPU is mostly not in use. Can anything be done here? Can the current CPU phases be made to run on the GPU? Can the app release the CPU to BOINC to work temporarily on another CPU job during the GPU phase? Even better can the app work on a CPU part of another HCCGPU task while the GPU is processing? Keeping the assigned CPU at 100% output. TaskA CPU1-> TaskA GPU ->TaskA CPU2->TaskB GPU ->TaskB CPU2->Task C GPU -> etc.Can the CPU phases be done off the grid (i.e. in house) leaving a pure GPU WU? Can the current WU be reworked into 3 (one for each phase. Like DDDT one result being the input of the next task)? You could stack several jobs together to offset the extra bandwidth this would necessitate. The WCG HCC GPU app is designed to use I CPU core and I doubt that will change. What you're asking would require an enormous amount of very intricate coding if it is even viable.
In 1969 I took an oath to defend and protect the U S Constitution against all enemies, both foreign and Domestic. There was no expiration date.
  |
||
|
|
LUFTY
Cruncher Joined: Apr 27, 2007 Post Count: 25 Status: Offline Project Badges: 
|
Hi Nanoprobe
Your config file works really well so I am settling for that however it does mean that 4 of more cores are not being used for other WCG tasks which is a shame and also I agree my other 4 CPU cores are not fully utilised. Kind regards Lufty |
||
|
|
cw64
Advanced Cruncher Joined: Oct 6, 2007 Post Count: 120 Status: Offline Project Badges:
|
Can the CPU usage be set to not be exclusive in BOINC? E.g on a 4 core system 4 CPU WUs are running at the same time as a GPU. The GPU app runs like any other application would outside of BOINC, taking CPU priority from one of the CPU tasks but not stopping it.
---------------------------------------- |
||
|
|
cw64
Advanced Cruncher Joined: Oct 6, 2007 Post Count: 120 Status: Offline Project Badges:
|
My 4 core runs 4 CPU WUs (DSFL) and 1 GPU simultaneously..... Hmm I seemed to have ignored this previously How are you doing this exactly? |
||
|
|
johncmacalister2010@gmail.com
Veteran Cruncher Canada Joined: Nov 16, 2010 Post Count: 799 Status: Offline Project Badges:
|
My 4 core runs 4 CPU WUs (DSFL) and 1 GPU simultaneously..... Hmm I seemed to have ignored this previously How are you doing this exactly? I'd like to know, too, please. Both my 6 cores run 5 CPU tasks and 1 GPU task simultaneously....is more possible?? Thanks!  crunching, crunching, crunching. AMD Ryzen 5 2600 6-core Processor with Windows 11 64 Pro. AMD Ryzen 7 3700X 8-Core Processor with Windows 11 64 Pro (part time)  |
||
|
|
cw64
Advanced Cruncher Joined: Oct 6, 2007 Post Count: 120 Status: Offline Project Badges:
|
My 4 core runs 4 CPU WUs (DSFL) and 1 GPU simultaneously..... Hmm I seemed to have ignored this previously How are you doing this exactly? I'd like to know, too, please. Both my 6 cores run 5 CPU tasks and 1 GPU task simultaneously....is more possible?? Thanks! I think this is without HCC on the GPU, another project like Milkyway e.g. |
||
|
|
nanoprobe
Master Cruncher Classified Joined: Aug 29, 2008 Post Count: 2998 Status: Offline Project Badges:
|
Hi Nanoprobe Your config file works really well so I am settling for that however it does mean that 4 of more cores are not being used for other WCG tasks which is a shame and also I agree my other 4 CPU cores are not fully utilised. Kind regards Lufty There are some other worthy non WCG projects that you could use your remaining 4 cores. Look at SIMAP and docking@home. I run SIMAP now and then although they don't always have work. Docking always has work when I've run it.
In 1969 I took an oath to defend and protect the U S Constitution against all enemies, both foreign and Domestic. There was no expiration date.
|
||
|
|
|