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#include "Bdef.h"
#if (INTFACE == C_CALL)
void Csgesd2d(int ConTxt, int m, int n, float *A, int lda,
int rdest, int cdest)
#else
F_VOID_FUNC sgesd2d_(int *ConTxt, int *m, int *n, float *A, int *lda,
int *rdest, int *cdest)
#endif
/*
* -- V1.1 BLACS routine --
* University of Tennessee, May 1, 1996
* Written by Clint Whaley.
*
* Purpose
* =======
* Locally-blocking point-to-point general real send.
*
* Arguments
* =========
*
* ConTxt (input) Ptr to int
* Index into MyConTxts00 (my contexts array).
*
* M (input) Ptr to int
* The number of rows of the matrix A. M >= 0.
*
* N (input) Ptr to int
* The number of columns of the matrix A. N >= 0.
*
* A (input) Ptr to real two dimensional array
* The m by n matrix A. Fortran77 (column-major) storage
* assumed.
*
* LDA (input) Ptr to int
* The leading dimension of the array A. LDA >= M.
*
* RDEST (input) Ptr to int
* The process row of the destination process.
*
* CDEST (input) Ptr to int
* The process column of the destination process.
*
* ------------------------------------------------------------------------
*/
{
void BI_ArgCheck(int, int, char *, char, char, char, int, int, int, int,
int *, int *);
BI_MPI_Datatype BI_GetMpiGeType(BLACSCONTEXT *, int, int, int,
BI_MPI_Datatype, int *);
BLACBUFF *BI_Pack(BLACSCONTEXT *, BVOID *, BLACBUFF *, BI_MPI_Datatype);
void BI_Ssend(BLACSCONTEXT *, int, int, BLACBUFF *);
void BI_Asend(BLACSCONTEXT *, int, int, BLACBUFF *);
void BI_UpdateBuffs(BLACBUFF *);
BLACBUFF *BI_GetBuff(int);
int BI_BuffIsFree(BLACBUFF *, int);
int dest, tlda, ierr;
BLACBUFF *bp;
BLACSCONTEXT *ctxt;
BI_MPI_Datatype MatTyp;
extern BLACBUFF BI_AuxBuff, *BI_ActiveQ;
MGetConTxt(Mpval(ConTxt), ctxt);
#if (BlacsDebugLvl > 0)
BI_ArgCheck(Mpval(ConTxt), RT_SD, "SGESD2D", 'a', 'u', 'u', Mpval(m),
Mpval(n), Mpval(lda), 1, Mpaddress(rdest), Mpaddress(cdest));
#endif
if (Mpval(lda) < Mpval(m)) tlda = Mpval(m);
else tlda = Mpval(lda);
dest = Mvkpnum(ctxt, Mpval(rdest), Mpval(cdest));
ctxt->scp = &ctxt->pscp;
MatTyp = BI_GetMpiGeType(ctxt, Mpval(m), Mpval(n), tlda,
BI_MPI_FLOAT, &BI_AuxBuff.N);
#ifdef SndIsLocBlk
BI_AuxBuff.Buff = (char *) A;
BI_AuxBuff.dtype = MatTyp;
BI_Ssend(ctxt, dest, PT2PTID, &BI_AuxBuff);
#else
bp = BI_Pack(ctxt, (BVOID *) A, NULL, MatTyp);
BI_Asend(ctxt, Mkpnum(ctxt, Mpval(rdest), Mpval(cdest)), PT2PTID, bp);
#endif
BI_MPI_Type_free(&MatTyp, ierr);
/*
* Having started the async send, update the buffers (reform links, check if
* active buffers have become inactive, etc.)
*/
#ifdef SndIsLocBlk
if (BI_ActiveQ) BI_UpdateBuffs(NULL);
#else
BI_UpdateBuffs(bp);
#endif
} /* end of sgesd2d */
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