Intel® oneAPI Math Kernel Library
Ask questions and share information with other developers who use Intel® Math Kernel Library.
Announcements
The Intel sign-in experience has changed to support enhanced security controls. If you sign in, click here for more information.

mkl_ddiamv multi-thread support

Aaron_B_1
Beginner
153 Views

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?

 

0 Kudos
1 Reply
Gennady_F_Intel
Moderator
153 Views

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

Reply