<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Jan 23, 2025, at 10:05 PM, Nils Tilton <ntilton@mines.edu> wrote:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; 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;"><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">Dear PETSc Team,</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">I hope this email finds you all well. I have a question regarding installation of PETSc. I recently installed PETSc on Ubuntu 20.04.2 LTS. I followed the online instructions, whereby I first downloaded the files using git, and then ran “./configure” and then “make all check.” However, I noted two issues during this process. First, after running ./configure, I got the following text:</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">“Language used to compile PETSc: C”</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">This gave me the impression PETSc was compiled with C, but my code is written in C++. Is the above going to be an issue? I am attaching my configure.log and make.log files if that helps.</div></div></div></blockquote><div><br></div> No issue. You can use it fully from C++<br><blockquote type="cite"><div><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; 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;"><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">The second issue is that when I ran “make all check,” I did get some errors in the final checking stage. These don’t appear in the make.log file, so I am attaching a screenshot. I seem to recall that screenshots are frowned upon when asking questions to the PETSc team. I apologize in advance. I just couldn’t find any other way to save the text.</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">I will add that I was able to successfully compile my C++ code that uses PETSc, but I am getting some funny behavior that could be related to the issues above. I am holding off on including those issues here to avoid complicating my question too soon.</div></div></div></blockquote><div><br></div> The "protocal" error message is from the MPI and can be ignored. Sadly MPI implementers still do not prefix their warning/error messages to indicate the are coming from MPI.</div><div><br></div><div> So you are set to go, good luck</div><div><br></div><div> Barry</div><div><br></div><div><blockquote type="cite"><div><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; 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;"><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">Thank you very much for all your help!</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">Best Wishes,</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;">Nils</div><div style="margin: 0in; font-size: 11pt; font-family: Aptos, sans-serif;"><o:p> </o:p></div></div><span id="cid:FB6B5006-ECF7-42FE-AA43-EF7EE0F4847E"><configure.log></span><span id="cid:92FCFE4A-1342-443D-A4E1-1A582A9254BF"><make.log></span><span id="cid:061D1A8F-6B2B-4C41-8C75-5D213210B753"><Screenshot 2025-01-23 at 5.57.48 PM.png></span></div></blockquote></div><br></body></html>