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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<link rel="stylesheet" href="/slepc/slepc.css" type="text/css">
<TITLE>SlepcVecMAXPBY</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<H1>SlepcVecMAXPBY</H1>
Computes y = beta*y + sum alpha*a[j]*x[j]
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcvec.h"
PetscErrorCode SlepcVecMAXPBY(Vec y,PetscScalar beta,PetscScalar alpha,PetscInt nv,PetscScalar a[],Vec x[])
</PRE>
Logically Collective on Vec
<P>
<H3><FONT COLOR="#883300">Input parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>beta </B></TD><TD> - scalar beta
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>alpha </B></TD><TD> - scalar alpha
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nv </B></TD><TD> - number of vectors in x and scalars in a
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>a </B></TD><TD> - array of scalars
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>x </B></TD><TD> - set of vectors
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Input/Output parameter</FONT></H3>
<DT><B>y </B> - the vector to update
<br>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
If x are Vec's with contiguous storage, then the operation is done
through a call to BLAS. Otherwise, VecMAXPY() is called.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../sys/SlepcVecSetTemplate.html#SlepcVecSetTemplate">SlepcVecSetTemplate</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/vec/contiguous.c.html#SlepcVecMAXPBY">src/vec/contiguous.c</A>
<BR><A HREF="./index.html">Index of all sys 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>
|
