topic Can MKL support both ilp64 and lp64 at the same time? in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794598#M2561 Hi,<BR /><BR />In general mixture of LP64 with ILP64 interfaces is problematic. If your machine is Intel 64 (x86_64) then using native 64-bit integers is preferable in one application. <BR /><BR />In order to use for example the same LAPACK functions in two packages simultaneously in one applicationit needs tohave different entry points for LP64 and ILP64 functions.<BR /> Wed, 27 Jun 2012 14:39:23 GMT barragan_villanueva_ 2012-06-27T14:39:23Z Can MKL support both ilp64 and lp64 at the same time? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794595#M2558 Hi! This question is not weird due to the merger of two packages. One with 64-bit integer (e.g. int64_t) and the other with 32-bit integer (e.g. int), and both use MKL functions (linked with -lmkl_intel_ilp64 and -lmkl_intel_lp64, respectively). One painful solution is to convert one to the other manually. :( Could anyone give me a better solution? Thank you!<DIV><SPAN style="font-family: Verdana, Arial, Helvetica, sans-serif;"><BR /></SPAN><DIV></DIV></DIV> Wed, 27 Jun 2012 13:50:59 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794595#M2558 woshiwuxin 2012-06-27T13:50:59Z Can MKL support both ilp64 and lp64 at the same time? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794596#M2559 <DIV id="art_pre_template">It possible to do only if you, for example, want to use lapack routines with LP64 API ( 32 bit INTEGER ) and <I>pardiso_64<B></B></I>wich support 64 bit INTEGER. In this casebefore calling<I>pardiso_64</I>, you need to copy all original INTEGER data to INTEGER*8 and pass these parameters to<I>pardiso_64</I>.</DIV><DIV id="art_pre_template"></DIV><DIV id="art_pre_template"></DIV><DIV id="art_pre_template"></DIV><DIV></DIV><DIV></DIV> Wed, 27 Jun 2012 14:08:28 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794596#M2559 Gennady_F_Intel 2012-06-27T14:08:28Z Can MKL support both ilp64 and lp64 at the same time? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794597#M2560 Gennady, thanks! The functions are all BLAS and LAPACK functions. It seems that I have to do the labor work. :( Wed, 27 Jun 2012 14:36:19 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794597#M2560 woshiwuxin 2012-06-27T14:36:19Z Can MKL support both ilp64 and lp64 at the same time? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794598#M2561 Hi,<BR /><BR />In general mixture of LP64 with ILP64 interfaces is problematic. If your machine is Intel 64 (x86_64) then using native 64-bit integers is preferable in one application. <BR /><BR />In order to use for example the same LAPACK functions in two packages simultaneously in one applicationit needs tohave different entry points for LP64 and ILP64 functions.<BR /> Wed, 27 Jun 2012 14:39:23 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794598#M2561 barragan_villanueva_ 2012-06-27T14:39:23Z Can MKL support both ilp64 and lp64 at the same time? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794599#M2562 Hi, Victor! Thanks for the suggestion. I've decided to port the 32-bit integer to 64-bit. I'm doing scientific computation. If the involved matrix is really huge, a signed 32-bit integer (up to 2^31-1) will be a problem for indexing the element (if double precision is used, arrays greater than 16 GB might be problematic). Wed, 27 Jun 2012 18:48:01 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794599#M2562 woshiwuxin 2012-06-27T18:48:01Z Can MKL support both ilp64 and lp64 at the same time? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794600#M2563 Hi,<BR /><BR />My syggestion was to use 64-bit integers just for integer argument which pass to MKL functions only.<BR />All other integers in your appication packagesmay be unchanged. Therefore you can link with ILP64 MKL intefraces. Thu, 28 Jun 2012 05:47:16 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Can-MKL-support-both-ilp64-and-lp64-at-the-same-time/m-p/794600#M2563 barragan_villanueva_ 2012-06-28T05:47:16Z