File: MatPreallocateSetLocal.html

package info (click to toggle)
petsc 2.2.0-4
  • links: PTS
  • area: main
  • in suites: sarge
  • size: 64,404 kB
  • ctags: 284,528
  • sloc: ansic: 223,999; python: 11,758; makefile: 7,707; fortran: 6,327; cpp: 4,104; sh: 3,387; csh: 41; asm: 6
file content (50 lines) | stat: -rw-r--r-- 2,662 bytes parent folder | download
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
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>MatPreallocateSetLocal</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<A NAME="MatPreallocateSetLocal"><H1>MatPreallocateSetLocal</H1></A>
Indicates the locations (rows and columns) in the matrix where nonzeros will be inserted using a local number of the rows and columns 
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
int MatPreallocateSetLocal(ISLocalToGlobalMappping map,int nrows, int *rows,int ncols, int *cols,int *dnz, int *onz)
</PRE>
Not Collective
<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>map </B></TD><TD>- the mapping between local numbering and global numbering
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nrows </B></TD><TD>- the number of rows indicated
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>rows </B></TD><TD>- the indices of the rows 
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ncols </B></TD><TD>- the number of columns in the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>cols </B></TD><TD>- the columns indicated
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dnz </B></TD><TD>- the array that will be passed to the matrix preallocation routines
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ozn </B></TD><TD>- the other array passed to the matrix preallocation routines
</TD></TR></TABLE>
<P>
<P>

<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
See the chapter in the users manual on performance for more details
<P>
Do not malloc or free dnz and onz, that is handled internally by these routines
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
 MatPreallocateFinalize(), <A HREF="../Mat/MatPreallocateSet.html#MatPreallocateSet">MatPreallocateSet</A>(), <A HREF="../Mat/MatPreallocateSymmetricSet.html#MatPreallocateSymmetricSet">MatPreallocateSymmetricSet</A>(), MatPreallocateInitialize(),
<BR>MatPreallocateInitialize(), <A HREF="../Mat/MatPreallocateSymmetricSetLocal.html#MatPreallocateSymmetricSetLocal">MatPreallocateSymmetricSetLocal</A>()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/../../include/petscmat.h.html#MatPreallocateSetLocal">src/mat/../../include/petscmat.h</A>
<BR><A HREF="./index.html">Index of all Mat 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>
</BODY></HTML>