topic Solving eigensystem on a cluster in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Solving-eigensystem-on-a-cluster/m-p/784371#M1675 <DIV style="text-align: justify;">Hello,</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">I need to solve a symmetric real eigenproblem. I found out that I should use<A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-C7F5DB40-39D9-4EC4-A912-1EED65DC2F22.htm#GUID-C7F5DB40-39D9-4EC4-A912-1EED65DC2F22">p?sytrd</A>or<A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-84AB85AB-9C9D-4E24-B3B3-9B8DF859DBBA.htm#GUID-84AB85AB-9C9D-4E24-B3B3-9B8DF859DBBA">p?hetrd</A>to reduce the matrix to a tridiagonal form and then use<A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-43194A76-1612-4587-B31C-E5B16041A46D.htm#GUID-43194A76-1612-4587-B31C-E5B16041A46D">steqr2</A>from scalapack to get all the eigen vectors and values.</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"><A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-0FCEE214-C41D-4237-ABB9-177F60687E14.htm">http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-0FCEE214-C41D-4237-ABB9-177F60687E14.htm</A></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">According to the documentation, sytrd andsteqr are threaded functions.</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"><A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mkl_userguide_lnx/GUID-2E857767-CF73-4460-A7EA-5A85D21E9431.htm" target="_blank">http://software.intel.com/sites/products/documentation/hpc/mkl/mkl_userguide_lnx/GUID-2E857767-CF73-4460-A7EA-5A85D21E9431.htm</A></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">but what about launching an eigensystem solver on a cluster of Xeons processors to use all the computing capability available ?</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">Thank you.</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">Vincent.</DIV> Fri, 13 Jul 2012 04:31:55 GMT berthou 2012-07-13T04:31:55Z Solving eigensystem on a cluster https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Solving-eigensystem-on-a-cluster/m-p/784371#M1675 <DIV style="text-align: justify;">Hello,</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">I need to solve a symmetric real eigenproblem. I found out that I should use<A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-C7F5DB40-39D9-4EC4-A912-1EED65DC2F22.htm#GUID-C7F5DB40-39D9-4EC4-A912-1EED65DC2F22">p?sytrd</A>or<A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-84AB85AB-9C9D-4E24-B3B3-9B8DF859DBBA.htm#GUID-84AB85AB-9C9D-4E24-B3B3-9B8DF859DBBA">p?hetrd</A>to reduce the matrix to a tridiagonal form and then use<A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-43194A76-1612-4587-B31C-E5B16041A46D.htm#GUID-43194A76-1612-4587-B31C-E5B16041A46D">steqr2</A>from scalapack to get all the eigen vectors and values.</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"><A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-0FCEE214-C41D-4237-ABB9-177F60687E14.htm">http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-0FCEE214-C41D-4237-ABB9-177F60687E14.htm</A></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">According to the documentation, sytrd andsteqr are threaded functions.</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"><A href="http://software.intel.com/sites/products/documentation/hpc/mkl/mkl_userguide_lnx/GUID-2E857767-CF73-4460-A7EA-5A85D21E9431.htm" target="_blank">http://software.intel.com/sites/products/documentation/hpc/mkl/mkl_userguide_lnx/GUID-2E857767-CF73-4460-A7EA-5A85D21E9431.htm</A></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">but what about launching an eigensystem solver on a cluster of Xeons processors to use all the computing capability available ?</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">Thank you.</DIV><DIV style="text-align: justify;"></DIV><DIV style="text-align: justify;">Vincent.</DIV> Fri, 13 Jul 2012 04:31:55 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Solving-eigensystem-on-a-cluster/m-p/784371#M1675 berthou 2012-07-13T04:31:55Z