https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/multiplication-of-a-diagonal-matrix-with-a-general-matrix/m-p/788024#M1979 Hi <BR /><BR />Which format you store the diagonal matrix? If take the diagonal matrix as sparse matrix. <BR />'<BR />Then you may do searchfrom mkl user manual, <BR /><A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/index.htm">http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/index.htm</A><BR /><BR />There are some routines to support sparsematrix* dense matrix<BR /><BR />like <BR /><H1 class="topictitle1">mkl_?csrmm</H1><!--Computes matrix - matrix product of a sparse matrix stored in the CSR format.--><DIV><P>Computes matrix - matrix product of a sparse matrix stored in the CSR format.</P></DIV><H1 class="topictitle1">mkl_?diamm</H1><!--Computes matrix-matrix product of a sparse matrix stored in the diagonal format with one-based indexing.--><DIV><P>Computes matrix-matrix product of a sparse matrix stored in the diagonal formatwith one-based indexing.<BR />You maysee if theyare ok. <BR /><BR />Regards,<BR />Ying H.</P></DIV> Wed, 23 Nov 2011 08:05:14 GMT Ying_H_Intel 2011-11-23T08:05:14Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/multiplication-of-a-diagonal-matrix-with-a-general-matrix/m-p/788023#M1978 Is there a routine in MKL which computes the multiplication of a diagonal matrix (where only diagonal elements are stored) with a general matrix? Tue, 22 Nov 2011 15:47:49 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/multiplication-of-a-diagonal-matrix-with-a-general-matrix/m-p/788023#M1978 Customer__Intel4 2011-11-22T15:47:49Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/multiplication-of-a-diagonal-matrix-with-a-general-matrix/m-p/788024#M1979 Hi <BR /><BR />Which format you store the diagonal matrix? If take the diagonal matrix as sparse matrix. <BR />'<BR />Then you may do searchfrom mkl user manual, <BR /><A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/index.htm">http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/index.htm</A><BR /><BR />There are some routines to support sparsematrix* dense matrix<BR /><BR />like <BR /><H1 class="topictitle1">mkl_?csrmm</H1><!--Computes matrix - matrix product of a sparse matrix stored in the CSR format.--><DIV><P>Computes matrix - matrix product of a sparse matrix stored in the CSR format.</P></DIV><H1 class="topictitle1">mkl_?diamm</H1><!--Computes matrix-matrix product of a sparse matrix stored in the diagonal format with one-based indexing.--><DIV><P>Computes matrix-matrix product of a sparse matrix stored in the diagonal formatwith one-based indexing.<BR />You maysee if theyare ok. <BR /><BR />Regards,<BR />Ying H.</P></DIV> Wed, 23 Nov 2011 08:05:14 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/multiplication-of-a-diagonal-matrix-with-a-general-matrix/m-p/788024#M1979 Ying_H_Intel 2011-11-23T08:05:14Z