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<p style="margin-top:0;margin-bottom:0">Thanks, Jed and Satish,</p>
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<p style="margin-top:0;margin-bottom:0">But "make -j N" does not change anything when compiling petsc.
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<p style="margin-top:0;margin-bottom:0">If I do something like: "make -j whatever". Then I always get:</p>
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<p style="margin-top:0;margin-bottom:0"><span>Using MAKEFLAGS: -j8 -l36.0 w </span></p>
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<p style="margin-top:0;margin-bottom:0">It looks like PETSc always uses "-j something" that we can not change using the command-line.</p>
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<p style="margin-top:0;margin-bottom:0">Is it a bug?</p>
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<p style="margin-top:0;margin-bottom:0">Fande, <br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> Jed Brown <jed@jedbrown.org><br>
<b>Sent:</b> Tuesday, July 24, 2018 3:44 PM<br>
<b>To:</b> Fande Kong; For users of the development version of PETSc<br>
<b>Subject:</b> Re: [petsc-dev] could we let "make -j N" work for PETSc and external packages?</font>
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<div class="PlainText">Fande Kong <Fande.Kong@inl.gov> writes:<br>
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> Hi Developers,<br>
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> Could we somehow let "make -j N" to take multiple threads for compiling PETSc. Do we use multiple threads when compiling the external packages such as hypre, parmetis etc.?<br>
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Yes, see self.parallelMake=0 for the few packages that don't support parallel make.<br>
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