https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145191#M26656 <P>The nearest version of MKL which we are planning to release the next month is MKL 2020 and this version will not contain such routines. You could submit the Feature request to the Intel Online Service Center.</P> Mon, 25 Nov 2019 02:59:00 GMT Gennady_F_Intel 2019-11-25T02:59:00Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145190#M26655 <P>We see there are a number of vectorized compact routines in the Intel MKL library:</P><P><A href="https://software.intel.com/en-us/articles/intelr-math-kernel-library-introducing-vectorized-compact-routines" style="color:#0563c1; text-decoration:underline">https://software.intel.com/en-us/articles/intelr-math-kernel-library-introducing-vectorized-compact-routines</A></P><P>We are developing an implicit vertical solver for a new weather model and would like to employ compact routine versions of the dgbtr that vectorize over multiple LU decomposition on adjacent vertical columns of the domain; and a compact version of dgbtrs for vectorizing solving the resulting LUx=b problem on adjacent columns.&nbsp; Are there plans to develop compact versions of dgbtrf and dgbtrs available, please?</P><P>John Michalakes, UCAR</P> Fri, 22 Nov 2019 18:25:46 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145190#M26655 John_Michalakes 2019-11-22T18:25:46Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145191#M26656 <P>The nearest version of MKL which we are planning to release the next month is MKL 2020 and this version will not contain such routines. You could submit the Feature request to the Intel Online Service Center.</P> Mon, 25 Nov 2019 02:59:00 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145191#M26656 Gennady_F_Intel 2019-11-25T02:59:00Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145192#M26657 <P>Dear John Michalakes,</P><P>Thanks for your question!</P><P>LU factorization using full and band storage of matrices currently. While you can&nbsp;open a&nbsp;support ticket on online service center at <A href="https://supporttickets.intel.com/" target="_blank">https://supporttickets.intel.com/</A> to complete the request.</P><P>Best Regards,</P><P>Ruqiu</P> Mon, 25 Nov 2019 06:27:19 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1145192#M26657 Ruqiu_C_Intel 2019-11-25T06:27:19Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1187239#M29637 <P>MKL Dev Team decided to postpone this feature implementation into the next version of MKL. We apologize for such decisions. </P><BR /> Fri, 26 Jun 2020 09:14:23 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Compact-routine-forms-of-dgbtrf-and-dgbtrs-for-vectorizing-LU/m-p/1187239#M29637 Gennady_F_Intel 2020-06-26T09:14:23Z