https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Sparse-matrix-vector-product/m-p/970500#M16544 <P>This should be covered by our "ILP64" interface. When you link to Intel MKL you have the choice on 64-bit systems to use the "LP64" or "ILP64" interfaces and the difference revolves around whether you use 32-bit (INTEGER) or 64-bit integers (INTEGER*8). &nbsp;Use our <A href="http://software.intel.com/sites/products/mkl/">link line advisor</A> for finding the right libraries to link.</P> Wed, 13 Mar 2013 17:22:54 GMT Todd_R_Intel 2013-03-13T17:22:54Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Sparse-matrix-vector-product/m-p/970499#M16543 <P>I use the MKL_ZCSRSYMV routine in a FORTRAN code.&nbsp;The sparse matrix (a) is very large and then I need that indexing vectors (ia and ja) where INTEGER*8 instead of INTEGER.</P> <P>How can I do?</P> Wed, 13 Mar 2013 16:46:54 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Sparse-matrix-vector-product/m-p/970499#M16543 Mirko_B_ 2013-03-13T16:46:54Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Sparse-matrix-vector-product/m-p/970500#M16544 <P>This should be covered by our "ILP64" interface. When you link to Intel MKL you have the choice on 64-bit systems to use the "LP64" or "ILP64" interfaces and the difference revolves around whether you use 32-bit (INTEGER) or 64-bit integers (INTEGER*8). &nbsp;Use our <A href="http://software.intel.com/sites/products/mkl/">link line advisor</A> for finding the right libraries to link.</P> Wed, 13 Mar 2013 17:22:54 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Sparse-matrix-vector-product/m-p/970500#M16544 Todd_R_Intel 2013-03-13T17:22:54Z