problem with cblas_cgemm3m when MKL_Domain_Set_Num_Threads(1, MKL_DOMAIN_BLAS)

yang_w_1 — Thu, 14 Apr 2016 07:07:12 GMT

dear,

I'm using cblas_cgemm3m to calculate matrix multiply matrix. when i use default mkl_domain_num_threads, api return correct result .

but when i use MKL_Domain_Set_Num_Threads(1, MKL_DOMAIN_BLAS),the result is wrong.

what's wrong with me?

mkl version i using is 10.3.7.

code below:

    int iRows = 24;
    int iCols = 25;
    int iLength = iRows*iCols;
    std::shared_ptr<std::complex<float> > pDataSrc(new std::complex<float>[iLength],std::default_delete<std::complex<float>[]>());
    std::shared_ptr<std::complex<float> > pDataRes(new std::complex<float>[iLength],std::default_delete<std::complex<float>[]>());
    //MKL_Domain_Set_Num_Threads(1, MKL_DOMAIN_BLAS);
    ReadBin(pDataSrc.get(),iLength*sizeof(std::complex<float>),"CORR_1.bin");
    MKL_Complex8 alpha;alpha.real = 1.0f;alpha.imag = 0.0f;
    MKL_Complex8 beta;beta.real = 0.0f;beta.imag = 0.0f;
    cblas_cgemm3m(CblasRowMajor, CblasNoTrans, CblasConjTrans,
        iRows,iRows,iCols,&alpha,pDataSrc.get(),iCols,pDataSrc.get(),iCols,&beta,pDataRes.get(),iRows);

pls check the problem with

Gennady_F_Intel — Thu, 14 Apr 2016 10:47:51 GMT

pls check the problem with the latest 11.3 version of MKL( you may take the eval version for 30 days). The similar symptoms were fixed in the past versions.

topic problem with cblas_cgemm3m when MKL_Domain_Set_Num_Threads(1, MKL_DOMAIN_BLAS) in Intel® oneAPI Math Kernel Library

problem with cblas_cgemm3m when MKL_Domain_Set_Num_Threads(1, MKL_DOMAIN_BLAS)

pls check the problem with