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Message boards : Number crunching : Optimization
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Daniel made a great work again, the modifications he made are both efficient and elegant. Thanks a lot. | |
ID: 1052 · Reply Quote | |
This is a test run on my FX8320 with a real vv workunit kept from the project, the same for every app. Best time of 3 runs.
-> gene_pcim_v1.03_linux64__sse2
user 36m 4s
-> gene_pcim_v1.03_linux64__avx
user 35m 44s
-> gene_pcim_v1.03_linux64__fma
user 34m 47s
-> TN-Grid.linux-x86-64-sse2-v1.2
user 32m 41s
-> TN-Grid.linux-x86-64-avx-v1.2
user 32m 15s
-> TN-Grid.linux-x86-64-fma-v1.2
user 31m 40s
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ID: 1054 · Reply Quote | |
Could someone recommend which version I should be using with Intel L7555 cpus? (4 of them) | |
ID: 1056 · Reply Quote | |
Could someone recommend which version I should be using with Intel L7555 cpus? (4 of them) Looks like thats the best app version for you. http://www.cpu-world.com/CPUs/Xeon/Intel-Xeon%20MP%20L7555%20-%20AT80604004875AA.html | |
ID: 1057 · Reply Quote | |
Thanks! | |
ID: 1058 · Reply Quote | |
Hi daniel, i have a question for you | |
ID: 1059 · Reply Quote | |
Hi daniel, i have a question for you Your CPU also supports FMA instructions, so you can also try FMA app version: http://www.cpu-world.com/CPUs/Core_i5/Intel-Core%20i5-6400.html. In general FMA app version should be faster than AVX, which is faster than SSE one. However on some CPUs FMA versions for some reason is a bit slower than AVX one, so please try both. It is possible to install few versions, but you would have to rename pc.exe files and modify app_info.xml to specify all app versions with proper plan classes. Files prepared by me are configured to run single app version only. ____________ | |
ID: 1060 · Reply Quote | |
Hi daniel, i have a question for you ok i will try fma app too. i use the i5-6400 since yesterday (60 wu completed) and i haven't recieve any fma WU i will try all 3 apps from tomorrow for now, both sse2 and avx standard app are between 1220 - 1290s cpu time | |
ID: 1061 · Reply Quote | |
hi Daniel i have a problem installing the app on the i5-6400 pc | |
ID: 1063 · Reply Quote | |
Did you restart the BOINC Client after placing the files? Otherwise these won't be recognized... | |
ID: 1064 · Reply Quote | |
Hello and from me. | |
ID: 1067 · Reply Quote | |
The server initially sends you all 3 flavors, after you return some results for each it decides which is the best for you and would usually send you WUs tagged for just one app version. | |
ID: 1068 · Reply Quote | |
So....what is the difference between default app which i download automatic (for example gene_pcim_v1.02_win64__fma) and the same one fma from the link and the archive? If i saw right both are version 1.02? Which one i must use for better performance? | |
ID: 1069 · Reply Quote | |
I asked rattorosso [Marche] to create apps for remaining 3 ARM architectures: armv6_vfp, armv7_vfpv3 and aarch64. He send them to me, and I uploaded them in usual place: https://bitbucket.org/sirzooro/pc-boinc/downloads/. Feel free to download and test them too. So....what is the difference between default app which i download automatic (for example gene_pcim_v1.02_win64__fma) and the same one fma from the link and the archive? If i saw right both are version 1.02? Which one i must use for better performance? Both internally specify the same version 1.02, but version from this thread has extra optimizations so it runs faster than official one. Valterc is going to take it and release as a new version of official one at end of May. ____________ | |
ID: 1070 · Reply Quote | |
Both internally specify the same version 1.02, but version from this thread has extra optimizations so it runs faster than official one. Valterc is going to take it and release as a new version of official one at end of May. I tested on my pc and there is the result (for some reason on my pc the SSE2 app is fastest app. CPU - i7 4790, 32GB RAM @1600MHz): 1. the official app SDSE2: Run time: 27 min 39 sec; CPU time: 27 min 30 sec; 2. the optimized app SSE2: Run time: 28 min 17 sec; CPU time: 27 min 43 sec; | |
ID: 1071 · Reply Quote | |
Hi | |
ID: 1076 · Reply Quote | |
I tested 3x the same 16 WUs on a Ryzen 1700 @ 3,8 GHz with SMT on. | |
ID: 1077 · Reply Quote | |
But I wonder why the Ryzen isn't faster than the old i5, even with the optimized app and 600 MHz more clock speed. I saw this also on other Projects. It is more because with the i5-3570 you are using a full core, whereas with the Ryzen you are using a virtual core. So it is not bad at all, though you may be right that it is optimized for Intel. | |
ID: 1078 · Reply Quote | |
hi, | |
ID: 1082 · Reply Quote | |
It appears that initially sse2 was downloaded then it switched over to avx when it realized that those run better, I have an i7-4770. However, now it seems that it has switched back to sse2? There also seems to be no sign of it running FMA... | |
ID: 1083 · Reply Quote | |
Message boards :
Number crunching :
Optimization