<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div> Yes, it appears no MUMPS matmatsolvetranspose is wired in. Does MUMPS provide such a function? If so it can be added with a few lines of code.<div class=""><br class=""></div><div class=""> Barry</div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Aug 4, 2022, at 3:55 PM, Lucas Banting <<a href="mailto:bantingl@myumanitoba.ca" class="">bantingl@myumanitoba.ca</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="elementToProof" style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">Hello,<br class=""></div><div class="elementToProof" style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;"><br class="">I am using MUMPS to solve a system with multiple right hand sides.</div><div class="elementToProof" style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">I have noticed that the MatMatSolve function appears to be quite a bit faster than the MatMatSolveTranspose function.<br class="">I was trying to look through the petsc source to see where the MatMatSolveTranspose_MUMPS function was but couldn't find it.<br class=""><br class="">Is PETSc just doing MatSolveTranspose_MUMPS for each right hand side when doing MatMatSolveTranspose with MUMPS?<br class="">If an accelerated version of MatMatSolveTranspose existed, it would be very useful for my application.<br class=""><br class="">Regards,<div class="">Lucas</div></div></div></blockquote></div><br class=""></div></body></html>