static char MTEST_Descrip[] = "Test of various send cancel calls";
*/
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
{
int errs = 0;
- int rank, size, source, dest;
- MPI_Comm comm;
- MPI_Status status;
- MPI_Request req;
+ int rank, size, dest;
+ MPI_Comm comm;
+ MPI_Status status;
+ MPI_Request req;
static int bufsizes[4] = { 1, 100, 10000, 1000000 };
char *buf;
#ifdef TEST_IRSEND
- int veryPicky = 0; /* Set to 1 to test "quality of implementation" in
- a tricky part of cancel */
+ int veryPicky = 0; /* Set to 1 to test "quality of implementation" in
+ * a tricky part of cancel */
#endif
- int cs, flag, n;
+ int cs, flag, n;
- MTest_Init( &argc, &argv );
+ MTest_Init(&argc, &argv);
comm = MPI_COMM_WORLD;
- MPI_Comm_rank( comm, &rank );
- MPI_Comm_size( comm, &size );
+ MPI_Comm_rank(comm, &rank);
+ MPI_Comm_size(comm, &size);
- source = 0;
- dest = size - 1;
+ dest = size - 1;
- MTestPrintfMsg( 1, "Starting scancel test\n" );
- for (cs=0; cs<4; cs++) {
- if (rank == 0) {
- n = bufsizes[cs];
- buf = (char *)malloc( n );
- if (!buf) {
- fprintf( stderr, "Unable to allocate %d bytes\n", n );
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MTestPrintfMsg( 1, "(%d) About to create isend and cancel\n",cs );
- MPI_Isend( buf, n, MPI_CHAR, dest, cs+n+1, comm, &req );
- MPI_Cancel( &req );
- MPI_Wait( &req, &status );
- MTestPrintfMsg( 1, "Completed wait on isend\n" );
- MPI_Test_cancelled( &status, &flag );
- if (!flag) {
- errs ++;
- printf( "Failed to cancel an Isend request\n" );
- fflush(stdout);
- }
- else
- {
- n = 0;
- }
- /* Send the size, zero for successfully cancelled */
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- /* Send the tag so the message can be received */
- n = cs+n+1;
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- free( buf );
- }
- else if (rank == dest)
- {
- int nn, tag;
- char *btemp;
- MPI_Recv( &nn, 1, MPI_INT, 0, 123, comm, &status );
- MPI_Recv( &tag, 1, MPI_INT, 0, 123, comm, &status );
- if (nn > 0)
- {
- /* If the message was not cancelled, receive it here */
- btemp = (char*)malloc( nn );
- if (!btemp)
- {
- fprintf( stderr, "Unable to allocate %d bytes\n", nn );
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MPI_Recv( btemp, nn, MPI_CHAR, 0, tag, comm, &status );
- free(btemp);
- }
- }
- MPI_Barrier( comm );
-
- if (rank == 0) {
- char *bsendbuf;
- int bsendbufsize;
- int bf, bs;
- n = bufsizes[cs];
- buf = (char *)malloc( n );
- if (!buf) {
- fprintf( stderr, "Unable to allocate %d bytes\n", n );
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- bsendbufsize = n + MPI_BSEND_OVERHEAD;
- bsendbuf = (char *)malloc( bsendbufsize );
- if (!bsendbuf) {
- fprintf( stderr, "Unable to allocate %d bytes for bsend\n", n );
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MPI_Buffer_attach( bsendbuf, bsendbufsize );
- MTestPrintfMsg( 1, "About to create and cancel ibsend\n" );
- MPI_Ibsend( buf, n, MPI_CHAR, dest, cs+n+2, comm, &req );
- MPI_Cancel( &req );
- MPI_Wait( &req, &status );
- MPI_Test_cancelled( &status, &flag );
- if (!flag) {
- errs ++;
- printf( "Failed to cancel an Ibsend request\n" );
- fflush(stdout);
- }
- else
- {
- n = 0;
- }
- /* Send the size, zero for successfully cancelled */
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- /* Send the tag so the message can be received */
- n = cs+n+2;
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- free( buf );
- MPI_Buffer_detach( &bf, &bs );
- free( bsendbuf );
- }
- else if (rank == dest)
- {
- int nn, tag;
- char *btemp;
- MPI_Recv( &nn, 1, MPI_INT, 0, 123, comm, &status );
- MPI_Recv( &tag, 1, MPI_INT, 0, 123, comm, &status );
- if (nn > 0)
- {
- /* If the message was not cancelled, receive it here */
- btemp = (char*)malloc( nn );
- if (!btemp)
- {
- fprintf( stderr, "Unable to allocate %d bytes\n", nn);
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MPI_Recv( btemp, nn, MPI_CHAR, 0, tag, comm, &status );
- free(btemp);
- }
- }
- MPI_Barrier( comm );
-
- /* Because this test is erroneous, we do not perform it unless
- TEST_IRSEND is defined. */
+ MTestPrintfMsg(1, "Starting scancel test\n");
+ for (cs = 0; cs < 4; cs++) {
+ if (rank == 0) {
+ n = bufsizes[cs];
+ buf = (char *) malloc(n);
+ if (!buf) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", n);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MTestPrintfMsg(1, "(%d) About to create isend and cancel\n", cs);
+ MPI_Isend(buf, n, MPI_CHAR, dest, cs + n + 1, comm, &req);
+ MPI_Cancel(&req);
+ MPI_Wait(&req, &status);
+ MTestPrintfMsg(1, "Completed wait on isend\n");
+ MPI_Test_cancelled(&status, &flag);
+ if (!flag) {
+ errs++;
+ printf("Failed to cancel an Isend request\n");
+ fflush(stdout);
+ }
+ else {
+ n = 0;
+ }
+ /* Send the size, zero for successfully cancelled */
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ /* Send the tag so the message can be received */
+ n = cs + n + 1;
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ free(buf);
+ }
+ else if (rank == dest) {
+ int nn, tag;
+ char *btemp;
+ MPI_Recv(&nn, 1, MPI_INT, 0, 123, comm, &status);
+ MPI_Recv(&tag, 1, MPI_INT, 0, 123, comm, &status);
+ if (nn > 0) {
+ /* If the message was not cancelled, receive it here */
+ btemp = (char *) malloc(nn);
+ if (!btemp) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", nn);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MPI_Recv(btemp, nn, MPI_CHAR, 0, tag, comm, &status);
+ free(btemp);
+ }
+ }
+ MPI_Barrier(comm);
#ifdef TEST_IRSEND
- /* We avoid ready send to self because an implementation
- is free to detect the error in delivering a message to
- itself without a pending receive; we could also check
- for an error return from the MPI_Irsend */
- if (rank == 0 && dest != rank) {
- n = bufsizes[cs];
- buf = (char *)malloc( n );
- if (!buf) {
- fprintf( stderr, "Unable to allocate %d bytes\n", n );
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MTestPrintfMsg( 1, "About to create and cancel irsend\n" );
- MPI_Irsend( buf, n, MPI_CHAR, dest, cs+n+3, comm, &req );
- MPI_Cancel( &req );
- MPI_Wait( &req, &status );
- MPI_Test_cancelled( &status, &flag );
- /* This can be pretty ugly. The standard is clear (Section 3.8)
- that either a sent message is received or the
- sent message is successfully cancelled. Since this message
- can never be received, the cancel must complete
- successfully.
+ if (rank == 0) {
+ char *bsendbuf;
+ int bsendbufsize;
+ int bf, bs;
+ n = bufsizes[cs];
+ buf = (char *) malloc(n);
+ if (!buf) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", n);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ bsendbufsize = n + MPI_BSEND_OVERHEAD;
+ bsendbuf = (char *) malloc(bsendbufsize);
+ if (!bsendbuf) {
+ fprintf(stderr, "Unable to allocate %d bytes for bsend\n", n);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MPI_Buffer_attach(bsendbuf, bsendbufsize);
+ MTestPrintfMsg(1, "About to create and cancel ibsend\n");
+ MPI_Ibsend(buf, n, MPI_CHAR, dest, cs + n + 2, comm, &req);
+ MPI_Cancel(&req);
+ MPI_Wait(&req, &status);
+ MPI_Test_cancelled(&status, &flag);
+ if (!flag) {
+ errs++;
+ printf("Failed to cancel an Ibsend request\n");
+ fflush(stdout);
+ }
+ else {
+ n = 0;
+ }
+ /* Send the size, zero for successfully cancelled */
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ /* Send the tag so the message can be received */
+ n = cs + n + 2;
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ free(buf);
+ MPI_Buffer_detach(&bf, &bs);
+ free(bsendbuf);
+ }
+ else if (rank == dest) {
+ int nn, tag;
+ char *btemp;
+ MPI_Recv(&nn, 1, MPI_INT, 0, 123, comm, &status);
+ MPI_Recv(&tag, 1, MPI_INT, 0, 123, comm, &status);
+ if (nn > 0) {
+ /* If the message was not cancelled, receive it here */
+ btemp = (char *) malloc(nn);
+ if (!btemp) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", nn);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MPI_Recv(btemp, nn, MPI_CHAR, 0, tag, comm, &status);
+ free(btemp);
+ }
+ }
+ MPI_Barrier(comm);
+
+ /* Because this test is erroneous, we do not perform it unless
+ * TEST_IRSEND is defined. */
- However, since there is no matching receive, this
- program is erroneous. In this case, we can't really
- flag this as an error */
- if (!flag && veryPicky) {
- errs ++;
- printf( "Failed to cancel an Irsend request\n" );
- fflush(stdout);
- }
- if (flag)
- {
- n = 0;
- }
- /* Send the size, zero for successfully cancelled */
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- /* Send the tag so the message can be received */
- n = cs+n+3;
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- free( buf );
- }
- else if (rank == dest)
- {
- int n, tag;
- char *btemp;
- MPI_Recv( &n, 1, MPI_INT, 0, 123, comm, &status );
- MPI_Recv( &tag, 1, MPI_INT, 0, 123, comm, &status );
- if (n > 0)
- {
- /* If the message was not cancelled, receive it here */
- btemp = (char*)malloc( n );
- if (!btemp)
- {
- fprintf( stderr, "Unable to allocate %d bytes\n", n);
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MPI_Recv( btemp, n, MPI_CHAR, 0, tag, comm, &status );
- free(btemp);
- }
- }
- MPI_Barrier( comm );
+ /* We avoid ready send to self because an implementation
+ * is free to detect the error in delivering a message to
+ * itself without a pending receive; we could also check
+ * for an error return from the MPI_Irsend */
+ if (rank == 0 && dest != rank) {
+ n = bufsizes[cs];
+ buf = (char *) malloc(n);
+ if (!buf) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", n);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MTestPrintfMsg(1, "About to create and cancel irsend\n");
+ MPI_Irsend(buf, n, MPI_CHAR, dest, cs + n + 3, comm, &req);
+ MPI_Cancel(&req);
+ MPI_Wait(&req, &status);
+ MPI_Test_cancelled(&status, &flag);
+ /* This can be pretty ugly. The standard is clear (Section 3.8)
+ * that either a sent message is received or the
+ * sent message is successfully cancelled. Since this message
+ * can never be received, the cancel must complete
+ * successfully.
+ *
+ * However, since there is no matching receive, this
+ * program is erroneous. In this case, we can't really
+ * flag this as an error */
+ if (!flag && veryPicky) {
+ errs++;
+ printf("Failed to cancel an Irsend request\n");
+ fflush(stdout);
+ }
+ if (flag) {
+ n = 0;
+ }
+ /* Send the size, zero for successfully cancelled */
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ /* Send the tag so the message can be received */
+ n = cs + n + 3;
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ free(buf);
+ }
+ else if (rank == dest) {
+ int n, tag;
+ char *btemp;
+ MPI_Recv(&n, 1, MPI_INT, 0, 123, comm, &status);
+ MPI_Recv(&tag, 1, MPI_INT, 0, 123, comm, &status);
+ if (n > 0) {
+ /* If the message was not cancelled, receive it here */
+ btemp = (char *) malloc(n);
+ if (!btemp) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", n);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MPI_Recv(btemp, n, MPI_CHAR, 0, tag, comm, &status);
+ free(btemp);
+ }
+ }
+ MPI_Barrier(comm);
#endif
- if (rank == 0) {
- n = bufsizes[cs];
- buf = (char *)malloc( n );
- if (!buf) {
- fprintf( stderr, "Unable to allocate %d bytes\n", n );
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MTestPrintfMsg( 1, "About to create and cancel issend\n" );
- MPI_Issend( buf, n, MPI_CHAR, dest, cs+n+4, comm, &req );
- MPI_Cancel( &req );
- MPI_Wait( &req, &status );
- MPI_Test_cancelled( &status, &flag );
- if (!flag) {
- errs ++;
- printf( "Failed to cancel an Issend request\n" );
- fflush(stdout);
- }
- else
- {
- n = 0;
- }
- /* Send the size, zero for successfully cancelled */
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- /* Send the tag so the message can be received */
- n = cs+n+4;
- MPI_Send( &n, 1, MPI_INT, dest, 123, comm );
- free( buf );
- }
- else if (rank == dest)
- {
- int nn, tag;
- char *btemp;
- MPI_Recv( &nn, 1, MPI_INT, 0, 123, comm, &status );
- MPI_Recv( &tag, 1, MPI_INT, 0, 123, comm, &status );
- if (nn > 0)
- {
- /* If the message was not cancelled, receive it here */
- btemp = (char*)malloc( nn );
- if (!btemp)
- {
- fprintf( stderr, "Unable to allocate %d bytes\n", nn);
- MPI_Abort( MPI_COMM_WORLD, 1 );
- }
- MPI_Recv( btemp, nn, MPI_CHAR, 0, tag, comm, &status );
- free(btemp);
- }
- }
- MPI_Barrier( comm );
+ if (rank == 0) {
+ n = bufsizes[cs];
+ buf = (char *) malloc(n);
+ if (!buf) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", n);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MTestPrintfMsg(1, "About to create and cancel issend\n");
+ MPI_Issend(buf, n, MPI_CHAR, dest, cs + n + 4, comm, &req);
+ MPI_Cancel(&req);
+ MPI_Wait(&req, &status);
+ MPI_Test_cancelled(&status, &flag);
+ if (!flag) {
+ errs++;
+ printf("Failed to cancel an Issend request\n");
+ fflush(stdout);
+ }
+ else {
+ n = 0;
+ }
+ /* Send the size, zero for successfully cancelled */
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ /* Send the tag so the message can be received */
+ n = cs + n + 4;
+ MPI_Send(&n, 1, MPI_INT, dest, 123, comm);
+ free(buf);
+ }
+ else if (rank == dest) {
+ int nn, tag;
+ char *btemp;
+ MPI_Recv(&nn, 1, MPI_INT, 0, 123, comm, &status);
+ MPI_Recv(&tag, 1, MPI_INT, 0, 123, comm, &status);
+ if (nn > 0) {
+ /* If the message was not cancelled, receive it here */
+ btemp = (char *) malloc(nn);
+ if (!btemp) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", nn);
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+ MPI_Recv(btemp, nn, MPI_CHAR, 0, tag, comm, &status);
+ free(btemp);
+ }
+ }
+ MPI_Barrier(comm);
}
- MTest_Finalize( errs );
+ MTest_Finalize(errs);
MPI_Finalize();
return 0;
}
