Hi All,
I must be doing something silly: when I try to run the following program,
based very closely on dmtcpaware2.c,
it always reports that dmtcp is not enabled (whether or not I run it with
dmtcp_launch).
In summary:
dmtcp_aware2.c, with dmtcp_launch: reports dmtcp is enabled
dmtcp_aware2.c, without dmtcp_launch: reports dmtcp NOT enabled
count_aware.c, with dmtcp_launch: reports dmtcp NOT enabled
count_aware.c, without dmtcp_launch: reports dmtcp NOT enabled
---- code below ----
#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
/* Be sure to compile with -I<path>; see Makefile in this directory. */
#include "dmtcp.h"
#define INTS_PER_LOOP 3
// Prints a sequence of n integers starting at 0
// at a rate of 1 character integer second, then checkpoints
int main(int argc, char* argv[])
{
unsigned long ii = 0;
int count = 0;
int rr;
int numCheckpoints, numRestarts;
while (1)
{
if(dmtcp_is_enabled()){
dmtcp_get_local_status(&numCheckpoints, &numRestarts);
printf("on iteration %d: this process has checkpointed %d times
and restarted %d times\n",
++count, numCheckpoints, numRestarts);
}else{
printf("on iteration %d; DMTCP not enabled!\n", ++count);
}
do {
printf("%d ", ii);
fflush(stdout);
sleep(1);
ii++;
} while (ii % INTS_PER_LOOP != 0);
printf("\n");
// Checkpoint and print result
if(dmtcp_is_enabled()){
printf("\n");
rr = dmtcp_checkpoint();
if(rr <= 0)
printf("Error, checkpointing failed: %d\n",rr);
if(rr == 1)
printf("***** after checkpoint *****\n");
if(rr == 2)
printf("***** after restart *****\n");
}else{
printf(" dmtcp disabled -- nevermind\n");
}
}
return 0;
}
--- simple makefile ---
ifndef CC CC=icc endif count_aware: count_aware.c ${CC} ${CFLAGS} -I
${DMTCP_ROOT}/include -o count_aware count_aware.c
Thanks,
--
Brandon E. Barker
http://www.cac.cornell.edu/barker/
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