1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>PetscViewerASCIIOpen</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<A NAME="PetscViewerASCIIOpen"><H1>PetscViewerASCIIOpen</H1></A>
Opens an ASCII file as a <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A>.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petsc.h"
int PetscViewerASCIIOpen(MPI_Comm comm,const char name[],PetscViewer *lab)
</PRE>
Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B><A HREF="../Sys/comm.html#comm">comm</A> </B></TD><TD>- the communicator
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>name </B></TD><TD>- the file name
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>lab </B> -the <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A> to use with the specified file
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
This <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A> can be destroyed with <A HREF="../Viewer/PetscViewerDestroy.html#PetscViewerDestroy">PetscViewerDestroy</A>().
<P>
If a multiprocessor communicator is used (such as <A HREF="../Sys/PETSC_COMM_WORLD.html#PETSC_COMM_WORLD">PETSC_COMM_WORLD</A>),
then only the first processor in the group opens the file. All other
processors send their data to the first processor to print.
<P>
Each processor can instead write its own independent output by
specifying the communicator <A HREF="../Sys/PETSC_COMM_SELF.html#PETSC_COMM_SELF">PETSC_COMM_SELF</A>.
<P>
As shown below, <A HREF="../Viewer/PetscViewerASCIIOpen.html#PetscViewerASCIIOpen">PetscViewerASCIIOpen</A>() is useful in conjunction with
<A HREF="../Mat/MatView.html#MatView">MatView</A>() and <A HREF="../Vec/VecView.html#VecView">VecView</A>()
<PRE>
<A HREF="../Viewer/PetscViewerASCIIOpen.html#PetscViewerASCIIOpen">PetscViewerASCIIOpen</A>(<A HREF="../Sys/PETSC_COMM_WORLD.html#PETSC_COMM_WORLD">PETSC_COMM_WORLD</A>,"mat.output",&viewer);
<A HREF="../Mat/MatView.html#MatView">MatView</A>(matrix,viewer);
</PRE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatView.html#MatView">MatView</A>(), <A HREF="../Vec/VecView.html#VecView">VecView</A>(), <A HREF="../Viewer/PetscViewerDestroy.html#PetscViewerDestroy">PetscViewerDestroy</A>(), <A HREF="../Viewer/PetscViewerBinaryOpen.html#PetscViewerBinaryOpen">PetscViewerBinaryOpen</A>(),
<BR><A HREF="../Viewer/PetscViewerASCIIGetPointer.html#PetscViewerASCIIGetPointer">PetscViewerASCIIGetPointer</A>(), <A HREF="../Viewer/PetscViewerSetFormat.html#PetscViewerSetFormat">PetscViewerSetFormat</A>(), <A HREF="../Viewer/PETSC_VIEWER_STDOUT_.html#PETSC_VIEWER_STDOUT_">PETSC_VIEWER_STDOUT_</A>, <A HREF="../Viewer/PETSC_VIEWER_STDERR_.html#PETSC_VIEWER_STDERR_">PETSC_VIEWER_STDERR_</A>,
<A HREF="../Viewer/PETSC_VIEWER_STDOUT_WORLD.html#PETSC_VIEWER_STDOUT_WORLD">PETSC_VIEWER_STDOUT_WORLD</A>, <A HREF="../Viewer/PETSC_VIEWER_STDOUT_SELF.html#PETSC_VIEWER_STDOUT_SELF">PETSC_VIEWER_STDOUT_SELF</A>,
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/src/viewer/impls/ascii/vcreatea.c.html#PetscViewerASCIIOpen">src/sys/src/viewer/impls/ascii/vcreatea.c</A>
<BR><A HREF="./index.html">Index of all Viewer routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/snes/examples/tutorials/ex26.c.html">src/snes/examples/tutorials/ex26.c.html</A><BR>
</BODY></HTML>
|
