root / www / HPL_indxl2g.html @ 7
Historique | Voir | Annoter | Télécharger (2,3 ko)
| 1 |
<HTML>
|
|---|---|
| 2 |
<HEAD>
|
| 3 |
<TITLE>HPL_indxl2g HPL 2.0 Library Functions September 10, 2008</TITLE> |
| 4 |
</HEAD>
|
| 5 |
|
| 6 |
<BODY BGCOLOR="WHITE" TEXT = "#000000" LINK = "#0000ff" VLINK = "#000099" |
| 7 |
ALINK = "#ffff00"> |
| 8 |
|
| 9 |
<H1>Name</H1> |
| 10 |
<B>HPL_indxl2g</B> Map a index-process pair into a global index. |
| 11 |
|
| 12 |
<H1>Synopsis</H1> |
| 13 |
<CODE>#include "hpl.h"</CODE><BR><BR> |
| 14 |
<CODE>int</CODE> |
| 15 |
<CODE>HPL_indxl2g(</CODE> |
| 16 |
<CODE>const int</CODE> |
| 17 |
<CODE>IL</CODE>, |
| 18 |
<CODE>const int</CODE> |
| 19 |
<CODE>INB</CODE>, |
| 20 |
<CODE>const int</CODE> |
| 21 |
<CODE>NB</CODE>, |
| 22 |
<CODE>const int</CODE> |
| 23 |
<CODE>PROC</CODE>, |
| 24 |
<CODE>const int</CODE> |
| 25 |
<CODE>SRCPROC</CODE>, |
| 26 |
<CODE>const int</CODE> |
| 27 |
<CODE>NPROCS</CODE> |
| 28 |
<CODE>);</CODE> |
| 29 |
|
| 30 |
<H1>Description</H1> |
| 31 |
<B>HPL_indxl2g</B> |
| 32 |
computes the global index of a matrix entry pointed to |
| 33 |
by the local index IL of the process indicated by PROC. |
| 34 |
|
| 35 |
<H1>Arguments</H1> |
| 36 |
<PRE>
|
| 37 |
IL (input) const int |
| 38 |
On entry, IL specifies the local index of the matrix entry. |
| 39 |
IL must be at least zero. |
| 40 |
</PRE>
|
| 41 |
<PRE>
|
| 42 |
INB (input) const int |
| 43 |
On entry, INB specifies the size of the first block of the |
| 44 |
global matrix. INB must be at least one. |
| 45 |
</PRE>
|
| 46 |
<PRE>
|
| 47 |
NB (input) const int |
| 48 |
On entry, NB specifies the blocking factor used to partition |
| 49 |
and distribute the matrix A. NB must be larger than one. |
| 50 |
</PRE>
|
| 51 |
<PRE>
|
| 52 |
PROC (input) const int |
| 53 |
On entry, PROC specifies the coordinate of the process whose |
| 54 |
local array row or column is to be determined. PROC must be |
| 55 |
at least zero and strictly less than NPROCS. |
| 56 |
</PRE>
|
| 57 |
<PRE>
|
| 58 |
SRCPROC (input) const int |
| 59 |
On entry, SRCPROC specifies the coordinate of the process |
| 60 |
that possesses the first row or column of the matrix. SRCPROC |
| 61 |
must be at least zero and strictly less than NPROCS. |
| 62 |
</PRE>
|
| 63 |
<PRE>
|
| 64 |
NPROCS (input) const int |
| 65 |
On entry, NPROCS specifies the total number of process rows |
| 66 |
or columns over which the matrix is distributed. NPROCS must |
| 67 |
be at least one. |
| 68 |
</PRE>
|
| 69 |
|
| 70 |
<H1>See Also</H1> |
| 71 |
<A HREF="HPL_indxg2l.html">HPL_indxg2l</A>, |
| 72 |
<A HREF="HPL_indxg2lp.html">HPL_indxg2lp</A>, |
| 73 |
<A HREF="HPL_indxg2p.html">HPL_indxg2p</A>, |
| 74 |
<A HREF="HPL_numroc.html">HPL_numroc</A>, |
| 75 |
<A HREF="HPL_numrocI.html">HPL_numrocI</A>. |
| 76 |
|
| 77 |
</BODY>
|
| 78 |
</HTML>
|