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Message boards : Number crunching : Intel Vtune: Download a free copy of Intel Vtune backed by community forum support

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rjs5
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Joined: 20 Feb 11
Posts: 34
ID: 87238
Credit: 417,419,375
RAC: 428,574
Discovered 3 mega primes321 LLR Jade: Earned 10,000,000 credits (10,244,140)Cullen LLR Turquoise: Earned 5,000,000 credits (9,266,928)ESP LLR Jade: Earned 10,000,000 credits (10,191,519)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,572,203)PPS LLR Turquoise: Earned 5,000,000 credits (9,081,606)PSP LLR Turquoise: Earned 5,000,000 credits (6,995,371)SoB LLR Jade: Earned 10,000,000 credits (10,297,183)SR5 LLR Turquoise: Earned 5,000,000 credits (5,427,400)SGS LLR Turquoise: Earned 5,000,000 credits (5,945,428)TRP LLR Turquoise: Earned 5,000,000 credits (5,149,937)Woodall LLR Turquoise: Earned 5,000,000 credits (5,221,858)321 Sieve Turquoise: Earned 5,000,000 credits (5,195,377)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (879,677)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,273,914)PPS Sieve Emerald: Earned 50,000,000 credits (60,304,021)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,437,484)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,509,929)AP 26/27 Sapphire: Earned 20,000,000 credits (23,000,627)GFN Double Bronze: Earned 100,000,000 credits (192,890,823)PSA Sapphire: Earned 20,000,000 credits (35,533,950)
Message 132500 - Posted: 31 Aug 2019 | 16:31:27 UTC
Last modified: 31 Aug 2019 | 16:33:55 UTC

I just noticed that Intel has made its Vtune Amplifier profiler available free with forum support. There is a Linux and Windows version. I have used it before to perform some system-wide profiling and disassembly.

It is pretty easy to see where the bottleneck locations are in a running program. It shows that gwnum is too aggressive with its software prefetching and limits computation with redundant memory read operations when running multiple WU.

I don't know what it does when confronted with an AMD CPU.

https://software.intel.com/en-us/vtune/choose-download

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Message boards : Number crunching : Intel Vtune: Download a free copy of Intel Vtune backed by community forum support

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