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Aaron_B_1
Beginner
34 Views

mkl_ddiamv multi-thread support

Does mkl_ddiamv support multi-thread calculation? 

In my project's properties I set "Use Intel MKL" to "Parallel". The majority of time of my programm is matrix-vector multiplication, which is performed by mkl_ddiamv. In my task manager I always see, that ONLY ONE thread is busy by my programm process. I use Intel C++ Compiler 14.0. I try to take many different sizes of multiplicated arrays. There is no difference. I unsuccessfully tried to find some info about the reason of one-thread calculation. 

Is it normal behavior of this function or I do something wrong? Should I change some of my project's properties or include something to launch my app multi-threated?

 

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Gennady_F_Intel
Moderator
34 Views

this function is single-threaded until the latest version. You may try make the conversion to CSR format and try mkl_csrmv routines. 

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