topic ScaLAPACK functions in the MKL and Ethernet network in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781275#M1478 Hello,<DIV>depends the task size. if the task size match with RAM available on single computer then please use Lapack version of dgetrf if not then -ScaLapack.</DIV><DIV>--Gennady</DIV> Mon, 12 Jul 2010 12:32:08 GMT Gennady_F_Intel 2010-07-12T12:32:08Z ScaLAPACK functions in the MKL and Ethernet network https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781274#M1477 Hello.<BR />In our class there are 20 computers, Intel Core 2 Duo in each. They are interconnected by simple 100Mbit Ethernet network using one Ethernet switch and twisted-pair.<BR />The question is: is it reasonable to use ScaLAPACK functions (e.g. pdgetrf) at this network and 20 computers? Or I have to use just LAPACK functions (e.g. dgetrf) at single computer?<BR />Thanks! Mon, 12 Jul 2010 12:23:23 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781274#M1477 alienff 2010-07-12T12:23:23Z ScaLAPACK functions in the MKL and Ethernet network https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781275#M1478 Hello,<DIV>depends the task size. if the task size match with RAM available on single computer then please use Lapack version of dgetrf if not then -ScaLapack.</DIV><DIV>--Gennady</DIV> Mon, 12 Jul 2010 12:32:08 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781275#M1478 Gennady_F_Intel 2010-07-12T12:32:08Z ScaLAPACK functions in the MKL and Ethernet network https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781276#M1479 Thanks for your answer!<BR />Yes, the taks's data can be stored in one RAM on single computer.<BR /><BR />Another question - is there any solution (may be not Intel :)) that will yield some performance in such Ethernet network?<BR /> Mon, 12 Jul 2010 12:41:05 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/ScaLAPACK-functions-in-the-MKL-and-Ethernet-network/m-p/781276#M1479 alienff 2010-07-12T12:41:05Z