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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.7.5 v3.7.5 docs/manualpages/Profiling/PetscLogView.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscLogView"><H1>PetscLogView</H1></A>
Prints a summary of the logging.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsys.h"
PetscErrorCode PetscLogView(PetscViewer viewer)
</PRE>
Collective over <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>viewer </B> -an ASCII viewer
<br>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-log_view [:filename] </B></TD><TD>- Prints summary of log information
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-log_view :filename.py:ascii_info_detail </B></TD><TD>- Saves logging information from each process as a Python file
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-log_view :filename.xml:ascii_xml </B></TD><TD>- Saves a summary of the logging information in a nested format, use a browser to open this file, for example on
Apple MacOS systems use open -a Safari filename.xml
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-log_all </B></TD><TD>- Saves a file Log.rank for each MPI process with details of each step of the computation
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-log_trace [filename] </B></TD><TD>- Displays a trace of what each process is doing
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
It is possible to control the logging programatically but we recommend using the options database approach whenever possible
By default the summary is printed to stdout.
<P>
Before calling this routine you must have called either <A HREF="../Profiling/PetscLogDefaultBegin.html#PetscLogDefaultBegin">PetscLogDefaultBegin</A>() or PetscLogNestedBegin()
<P>
If PETSc is configured with --with-logging=0 then this functionality is not available
<P>
The nested XML format was kindly donated by Koos Huijssen and Christiaan M. Klaij MARITIME RESEARCH INSTITUTE NETHERLANDS
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
log, dump, print
<BR>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Profiling/PetscLogDefaultBegin.html#PetscLogDefaultBegin">PetscLogDefaultBegin</A>(), <A HREF="../Profiling/PetscLogDump.html#PetscLogDump">PetscLogDump</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/logging/plog.c.html#PetscLogView">src/sys/logging/plog.c</A>
<BR><A HREF="./index.html">Index of all Profiling routines</A>
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