<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Am Mi., 8. Mai 2019 um 14:03 Uhr schrieb Matthew Knepley via petsc-dev <<a href="mailto:petsc-dev@mcs.anl.gov">petsc-dev@mcs.anl.gov</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">On Wed, May 8, 2019 at 7:41 AM Hapla Vaclav via petsc-dev <<a href="mailto:petsc-dev@mcs.anl.gov" target="_blank">petsc-dev@mcs.anl.gov</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">Hello<br>
<br>
I just encountered their manpages and it's a mess. I think in case of file I/O, a user should be deliberate about filename and other settings. Sometimes less is more and I think this is the case. Why anybody should use PETSC_VIEWER_BINARY_(comm) and then set the filename with environment variable? Better to use PetscObjectViewFromOptions for instance (PETSC_OPTIONS can be used if one wants to use env var).<br>
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(And BTW in case of HDF5, the option -viewer_hdf5_filename is not processed anywhere.)<br>
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Any objections about removing these?<br></blockquote><div><br></div><div>I am fine with it. The new system is better.</div><div><br></div><div>Since these are user interface, we should deprecate them somehow. Will the normal deprecation work?</div></div></div></blockquote><div>These are functions (albeit weirdly-named ones which don't return error codes), so one would assume that the usual function deprecation procedure would work, and then things like PETSC_VIEWER_BINARY_WORLD would also show up as deprecated.</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
Vaclav</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail-m_7505211777710551270gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>
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