Posts by LookAS

1) Message boards : Number crunching : Optimized RakeSearch app for rank 9 (computations finished) (Message 284) Posted 9 Jan 2018 by LookAS Post: I run tests again several times with offset set the same for AVX2 and AVX512 to 0 =4300MHz and the results are: AVX2 real 3m32,724s user 0m0,000s sys 0m0,015s AVX512 real 3m25,637s user 0m0,000s sys 0m0,015s AVX512 looks (and is) faster, but when interpolated it is basically the same as the last time with offset set to -3 =4000MHz, but now you can see it clock to clock. BOINC and other CPU load intensive processes were suspended. I am available for another test when needed. Keep up the good work.
2) Message boards : Number crunching : Optimized RakeSearch app for rank 9 (computations finished) (Message 275) Posted 7 Jan 2018 by LookAS Post: Sure, results for AVX2 and AVX512 on i9-7920X (offset for AVX2 is set to 4GHz, for AVX512 is set to 3.8GHz) under Windows 10: AVX2 real 3m32,268s user 0m0,000s sys 0m0,000s AVX512 real 3m40,743s user 0m0,000s sys 0m0,000s Yes, times are correct. I could set the offset same for the benchmarking if it makes a difference later today.
3) Message boards : Number crunching : Optimized RakeSearch app for rank 9 (computations finished) (Message 271) Posted 6 Jan 2018 by LookAS Post: Hi, I am trying running AVX512 app and it is not triggering my AVX512 offset set in BIOS on my i9-7920X cpu, it runs with offset for AVX2. Is this app really using AVX512? edit: been observing it for a little longer and it occasionaly triggers AVX512 offset, but it is quite rare and only for a very short period of time.