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<H3><A NAME="SECTION04852200000000000000">Arguments</A></H3>
<P>
<DL COMPACT><DT>M
<DD> (global input) INTEGER <BR>
On entry, M specifies the number of rows of the
(sub)matrix A to be copied. M <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14966" SRC="img308.gif"> 0.
<P>
<DT>N
<DD> (global input) INTEGER <BR>
On entry, N specifies the number of columns of the (sub)matrix
A to be copied. N <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14966" SRC="img308.gif"> zero.
<P>
<DT>A
<DD> (local input) REAL/COMPLEX/INTEGER array, dimension
(LLD_A,LOCc(JA+N-1)) <BR>
On entry, the source matrix.
<P>
<DT>IA
<DD> (global input) INTEGER <BR>
On entry,the global row index of the beginning of the (sub)matrix
of A to copy.<BR>
1 <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> IA <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> M_A - M + 1.
<P>
<DT>JA
<DD> (global input) INTEGER <BR>
On entry,the global column index of the beginning of the (sub)matrix
of A to copy.<BR>
1 <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> JA <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> N_A - N + 1.
<P>
<DT>DESCA
<DD> (global and local input) INTEGER array, dimension (DLEN_)<BR>
The array descriptor for the distributed matrix A.<BR>
Only DESCA(DTYPE_)=1 is supported, and thus DLEN_ = 9.<BR>
If the calling process is not part of the context of A,
then DESCA(CTXT_) must be equal to -1.
<P>
<DT>B
<DD> (local output) REAL/COMPLEX/INTEGER array, dimension
(LLD_B,LOCc(JB+N-1)) <BR>
On exit, the defined (sub)matrix is overwritten by the indicated
(sub)matrix from A.
<P>
<DT>IB
<DD> (global input) INTEGER <BR>
On entry, the global row index of the beginning of the (sub)matrix
of B that will be overwritten.<BR>
1 <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> IB <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> M_B - M + 1.
<P>
<DT>JB
<DD> (global input) INTEGER <BR>
On entry, the global column index of the beginning of the submatrix
of B that will be overwritten.<BR>
1 <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> JB <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14970" SRC="img309.gif"> N_B - N + 1.
<P>
<DT>DESCB
<DD> (global and local input) INTEGER array, dimension (DLEN_)<BR>
The array descriptor for the distributed matrix B.<BR>
Only DESCB(DTYPE_)=1 is supported, and thus DLEN_ = 9.<BR>
If the calling process is not part of the context of B,
then DESCB(CTXT_) must be equal to -1.
<P>
<DT>ICTXT
<DD> (global input) INTEGER <BR>
The context encompassing at least the union of all processes
in context A and context B. All processes in the context ICTXT
must call this routine, even if they do not own a piece of either
matrix.
<P>
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<P><ADDRESS>
<I>Susan Blackford <BR>
Tue May 13 09:21:01 EDT 1997</I>
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