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darshan
darshan
Commits
b4be0abd
Commit
b4be0abd
authored
Jan 26, 2016
by
Shane Snyder
Browse files
allreduce job start time in darshan-core init.
parent
8070c831
Changes
1
Hide whitespace changes
Inline
Side-by-side
darshan-runtime/lib/darshan-core.c
View file @
b4be0abd
...
...
@@ -312,6 +312,10 @@ void darshan_core_initialize(int argc, char **argv)
}
}
/* reduce so all ranks agree on the job start time */
DARSHAN_MPI_CALL
(
PMPI_Allreduce
)(
MPI_IN_PLACE
,
&
init_core
->
log_job_p
->
start_time
,
1
,
MPI_INT64_T
,
MPI_MIN
,
MPI_COMM_WORLD
);
if
(
internal_timing_flag
)
{
init_time
=
DARSHAN_MPI_CALL
(
PMPI_Wtime
)()
-
init_start
;
...
...
@@ -335,7 +339,6 @@ void darshan_core_shutdown()
int
internal_timing_flag
=
0
;
struct
tm
*
start_tm
;
time_t
start_time_tmp
;
int64_t
first_start_time
;
int64_t
last_end_time
;
double
start_log_time
;
double
tm_end
;
...
...
@@ -445,16 +448,11 @@ void darshan_core_shutdown()
final_core
->
log_job_p
->
end_time
=
time
(
NULL
);
/* reduce to report first start time and last end time across all ranks
* at rank 0
*/
DARSHAN_MPI_CALL
(
PMPI_Reduce
)(
&
final_core
->
log_job_p
->
start_time
,
&
first_start_time
,
1
,
MPI_LONG_LONG
,
MPI_MIN
,
0
,
MPI_COMM_WORLD
);
/* reduce to report last end time across all ranks at rank 0 */
DARSHAN_MPI_CALL
(
PMPI_Reduce
)(
&
final_core
->
log_job_p
->
end_time
,
&
last_end_time
,
1
,
MPI_
LONG_LONG
,
MPI_MAX
,
0
,
MPI_COMM_WORLD
);
1
,
MPI_
INT64_T
,
MPI_MAX
,
0
,
MPI_COMM_WORLD
);
if
(
my_rank
==
0
)
{
out_job
.
start_time
=
first_start_time
;
out_job
.
end_time
=
last_end_time
;
}
...
...
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