Hi,
I have an issue on how to debug the program after the dmtcp restart the
checkpoint. The sample program is attached. I read the Q&A link, which say
that I can set up MTCP_RESTART_PAUSE environment variable to pause the
program and then gdb can attach the process. However, I try several times
and it doesn't work.
Could you give me some help on this?
Thanks in advance.
--
Yu Wang, Ph.D. Candidate
School of Electrical Engineering and Computer Science
University of Ottawa
800 King Edward Ave., Ottawa
K1N 6N5 ON Canada
Email: ambitionw...@gmail.com, ywang...@uottawa.ca
Homepage: https://sites.google.com/site/immanuelyuwang/
<https://sites.google.com/site/ambitionwang277/>
#include <stdio.h>
#include <stdlib.h>
#include <dmtcp.h>
int main() {
if ( ! dmtcp_is_enabled() ) {
printf("\n *** dmtcp_is_enabled: executable seems to not be running"
" under dmtcp_launch.\n\n");
}
int retval = dmtcp_checkpoint();
if (retval == DMTCP_AFTER_CHECKPOINT) {
printf("*** dmtcp_checkpoint: This program has now invoked a checkpoint.\n"
" It will resume its execution next.\n");
} else if (retval == DMTCP_AFTER_RESTART) {
printf("*** dmtcp_checkpoint: This program is now restarting.\n");
} else if (retval == DMTCP_NOT_PRESENT) {
printf(" *** dmtcp_checkpoint: DMTCP is not running."
" Skipping checkpoint.\n");
}
printf("\n*** Process done executing. Successfully exiting.\n");
if (retval == DMTCP_AFTER_CHECKPOINT) {
printf("*** Execute ./dmtcp_restart_script.sh to restart.\n");
}
return 0;
}
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