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/*
* PCMPSC.C - parallel communications routines for PPC under MPSC
*
* Source Version: 2.0
* Software Release #92-0043
*
*/
#include "cpyright.h"
#include "ppc.h"
#include <mpsc/mpsc.h>
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_OPEN_GROUP - open a copy of the named executable on each available
* - node
*/
PC_open_group(argv, pn)
char **argv;
int *pn;
{
#if 0
int i, n;
mpsc_init();
/* start up the nodes, the number of nodes is determined by
* the resource management environment variables
*/
load(name, -1, 0);
n = numnodes();
for (i = 0; i < n; i++)
nl[i].acpu = i;
*pn = n;
#endif
return(TRUE);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_OPEN_MEMBER - open a copy of the named executable on each available
* - node
*/
PROCESS *PC_open_member(argv, pnn)
char **argv;
int *pnn;
{PROCESS *pp;
mpsc_init();
pp = FMAKE(PROCESS, "PC_OPEN_MEMBER:pp");
pp->acpu = mynode();
pp->rcpu = myhost();
*pnn = numnodes();
return(pp);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_OUT - write data out to the filtered list of nodes
* - this does a message passing system's SEND command
* - or a LINDA-like PUT
*/
PC_out(bf, type, ni, pp, filt)
byte *bf;
char *type;
size_t ni;
PROCESS *pp;
int *filt;
{int i, j, ityp, dn, did, nb, t, more, *p;
int type_index, default_node, default_id, host_node;
int *nl, *pnl, *pl, *ppl, nn, np;
type_index = 0;
default_node = -1;
default_id = 0;
host_node = myhost();
ityp = 0;
nl = NULL;
pl = NULL;
if (filt != NULL)
{p = filt;
more = TRUE;
while (more)
{switch (*p++)
{case PC_MATCH_TYPE :
ityp |= *p++;
ityp |= ((type_index << 16) & PC_TYPE_MASK);
break;
case PC_MATCH_TAG :
ityp |= (*p++ & PC_TAG_MASK);
break;
case PC_MATCH_NODE :
nl = p++;
nn = *p++;
p += nn;
break;
case PC_MATCH_PID :
pl = p;
np = *p++;
p += np;
break;
default :
more = FALSE;
break;};};};
nb = ni*sizeof(int);
if (nl == NULL)
{nn = 1;
pnl = &default_node;}
else
{pnl = nl;
nn = *pnl++;};
for (i = 0; i < nn; i++)
{dn = *pnl++;
if (dn == PC_GROUP_LEADER)
dn = host_node;
if (pl == NULL)
{np = 1;
ppl = &default_id;}
else
{ppl = pl;
np = *ppl++;};
for (j = 0; i < np; i++)
{did = *ppl++;
csend(ityp, bf, nb, dn, did);
if (_PC_debug)
PRINT(stdout, "\t\t\tNode %d sent %d bytes to %d\n",
pp->acpu, nb, dn);};};
return((int) ni);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_IN - read data in from the filtered list of nodes
* - this does a message passing system's RECV command
* - or a LINDA-like GET
*/
PC_in(bf, type, ni, pp, filt)
byte *bf;
char *type;
size_t ni;
PROCESS *pp;
int *filt;
{int i, n, ityp, dn, did, nb, t, more, *p;
int type_index;
ityp = 0;
type_index = 0;
if (filt != NULL)
{p = filt;
more = TRUE;
while (more)
{switch (*p++)
{case PC_MATCH_TYPE :
ityp |= *p++;
ityp |= (type_index << 16) & PC_TYPE_MASK;
break;
case PC_MATCH_TAG :
ityp |= (*p++ & PC_TAG_MASK);
break;
case PC_MATCH_NODE :
case PC_MATCH_PID :
break;
default :
more = FALSE;
break;};};};
nb = ni*sizeof(int);
crecv(ityp, bf, nb);
if (_PC_debug)
PRINT(stdout, "Node %d got %d bytes\n", pp->acpu, nb);
return((int) ni);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_SYNC_EXECUTION - synchronize the execution of the tasks */
void PC_sync_execution()
{gsync();
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
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