<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello all,<div class=""><br class=""></div><div class="">As part of development, I have several arch folders lying around in my PETSC_DIR namely a 32-bit OSX, 64-bit OSX, 32-bit linux with valgrind, 64-bit linux with valgrind, and a 32-bit up to date with current master. All of these have a —download-mpich —download-fblaslapack and hence their own copy of each (so that’s 5 copies of each, plus other duplicated packages im sure). At this stage, even getting the bare minimum of these arches ready for dev work after a rebase/git pull takes decades as package versions, or conf settings change, forcing a rebuild of the same packages multiple times.</div><div class=""><br class=""></div><div class=""><u class="">My question(s):</u></div><div class="">What petsc ./configure options are necessary to change the configuration of each library w.r.t. petsc? i.e. can my 64-bit arches use my 32-bit MPICH/fblaslapack and vice-versa? Does this change when I have —with-debug on or off? If so, what other packages have a similar ability? Is there anywhere in ./configure —help where this kind of information would be documented? </div><div class=""><br class=""></div><div class="">I suspect that this hasn’t been fully explored since its primarily a developer “problem” and not one the average user will run into/care about (since they usually aren’t building petsc multiple times). I’m sure everyone has their own ways of tackling this problem, I’d love to hear them.</div><div class=""><br class=""><div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); 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; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div>Best regards,<br class=""><br class="">Jacob Faibussowitsch<br class="">(Jacob Fai - booss - oh - vitch)<br class="">Cell: (312) 694-3391</div></div>
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