OtacilioNeto

I did a rebuild before open this issue. This is my system status: [ota@nostromo /usr/ports/math/openblas]$ ldd /usr/local/bin/scilab-bin | grep blas libopenblasp.so.0 => /usr/local/lib/libopenblasp.so.0 (0x808a00000) [ota@nostromo /usr/ports/math/openblas]$ pkg info scilab scilab-5.5.2_4...

i7 3517U I'm rebuilding openblas without OpenSMP support. I'm getting a feeling that OpenMP is running only two threads.

1 thread A1=rand(1000, 1000);tic(); [S, v, D]=svd(A1); toc() -> ans = 46.151 2 thread A1=rand(1000, 1000);tic(); [S, v, D]=svd(A1); toc() -> ans = 45.244 3 thread A1=rand(1000, 1000);tic(); [S, v,...

I do not enable AVX2 because my processor do not have this set of instructions, but AVX and SSE 4 are enabled on compilation.

root@nostromo:~ # grep -e Features -e CPU /var/log/dmesg.today CPU: Intel(R) Core(TM) i7-3517U CPU @ 1.90GHz (2394.63-MHz K8-class CPU) Features=0x1783fbff Features2=0xdc982203 AMD Features=0x28100800 AMD Features2=0x1 FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs...

I have a no virtualized machine, but it is a little old. I'm rebuilding in there to test. Is this one. root@squitch:/home/ota # grep -e Features -e CPU /var/log/dmesg.today CPU:...

The rebuild in the virtualized machine without OpenMP is done. No luck, same behavior. So, it not OpenMP related.

But the Intel specs for this CPU claims that it supports virtualization: http://ark.intel.com/pt-BR/products/65714/Intel-Core-i7-3517U-Processor-4M-Cache-up-to-3_00-GHz

I have finished the tests on my old machine. Same behavior. Now are a real machine and a virtualized with the same behavior. This is the real machine results: [ota@squitch...

On both installs there is no libopenblas_cputype.so. Name : openblas Version : 0.2.19,1 Installed on : Fri Feb 3 00:05:12 2017 BRT Origin : math/openblas Architecture : freebsd:11:x86:64 Prefix :...