[Octave-bug-tracker] [bug #63184] [MXE Octave] AMD ZEN AOCL library support for blas, lapack and fftw

[Dmitri A. Sergatskov]

Follow-up Comment #17, bug #63184 (project octave):

Also, allegedly, libflame is very good at Cholesky decomposition.
But I do not see this (perhaps I am doing smth wrong):

Test script:


cat t_chol.m 
runs = 10;
cumulate = 0;
b = zeros(5000);
for ii = 1:runs
  a = randn(5000);
  a = a'*a;
  tic;
    b = chol(a);
  timing = toc;
  cumulate = cumulate + timing;
end




$ OMP_NUM_THREADS=8
LD_PRELOAD=/opt/AMD/aocl/aocl-linux-gcc-3.2.0/lib_LP64/libflame.so octave -q
octave:1> t_chol
octave:2> cumulate 
cumulate = 6.1918
octave:3> 

$ OMP_NUM_THREADS=8 octave -q
octave:1> t_chol
octave:2> cumulate 
cumulate = 2.2371

$ OMP_NUM_THREADS=16
LD_PRELOAD=/opt/AMD/aocl/aocl-linux-gcc-3.2.0/lib_LP64/libflame.so octave -q
octave:1> t_chol
octave:2> cumulate 
cumulate = 6.0178
octave:3> 

$ OMP_NUM_THREADS=16 octave -q
octave:1> t_chol
octave:2> cumulate 
cumulate = 1.7002



Dmitri.
-- 



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