Hi Brandon,
dmtcpaware2.c is the old interface. I would recommend looking
at the newer alternative:
<DMTCP>/test/plugin/
some subdirectories there to look especially at are:
applic-delayed-ckpt
applic-initiated-ckpt
I would recommend trying that first.
Best,
- Gene
On Fri, May 29, 2015 at 07:08:05PM -0400, Brandon Barker wrote:
> 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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