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darshan
darshan
Commits
43cfa9bf
Commit
43cfa9bf
authored
Mar 24, 2015
by
Philip Carns
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Plain Diff
stub in more mpiio module code
parent
91a27d65
Changes
1
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1 changed file
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109 additions
and
13 deletions
+109
-13
darshan-runtime/lib/darshan-mpiio.c
darshan-runtime/lib/darshan-mpiio.c
+109
-13
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darshan-runtime/lib/darshan-mpiio.c
View file @
43cfa9bf
...
...
@@ -90,6 +90,13 @@ NULL
#define MPIIO_LOCK() pthread_mutex_lock(&mpiio_runtime_mutex)
#define MPIIO_UNLOCK() pthread_mutex_unlock(&mpiio_runtime_mutex)
static
void
mpiio_runtime_initialize
(
void
);
static
void
mpiio_disable_instrumentation
(
void
);
static
void
mpiio_shutdown
(
void
);
static
void
mpiio_get_output_data
(
void
**
buffer
,
int
*
size
);
#ifdef HAVE_MPIIO_CONST
int
MPI_File_open
(
MPI_Comm
comm
,
const
char
*
filename
,
int
amode
,
MPI_Info
info
,
MPI_File
*
fh
)
#else
...
...
@@ -155,16 +162,116 @@ int MPI_File_open(MPI_Comm comm, char *filename, int amode, MPI_Info info, MPI_F
return
(
ret
);
}
static
void
mpiio_runtime_initialize
()
{
int
ret
;
int
mem_limit
;
struct
darshan_module_funcs
mpiio_mod_fns
=
{
.
disable_instrumentation
=
&
mpiio_disable_instrumentation
,
.
prepare_for_reduction
=
NULL
,
.
reduce_records
=
NULL
,
.
get_output_data
=
&
mpiio_get_output_data
,
.
shutdown
=
&
mpiio_shutdown
};
/* don't do anything if already initialized or instrumenation is disabled */
if
(
mpiio_runtime
||
instrumentation_disabled
)
return
;
/* register the mpiio module with darshan core */
darshan_core_register_module
(
DARSHAN_MPIIO_MOD
,
&
mpiio_mod_fns
,
&
mem_limit
);
/* return if no memory assigned by darshan core */
if
(
mem_limit
==
0
)
return
;
mpiio_runtime
=
malloc
(
sizeof
(
*
mpiio_runtime
));
if
(
!
mpiio_runtime
)
return
;
memset
(
mpiio_runtime
,
0
,
sizeof
(
*
mpiio_runtime
));
/* set maximum number of file records according to max memory limit */
/* NOTE: maximum number of records is based on the size of a mpiio file record */
mpiio_runtime
->
file_array_size
=
mem_limit
/
sizeof
(
struct
darshan_mpiio_file
);
mpiio_runtime
->
file_array_ndx
=
0
;
/* allocate array of runtime file records */
mpiio_runtime
->
file_runtime_array
=
malloc
(
mpiio_runtime
->
file_array_size
*
sizeof
(
struct
mpiio_runtime_file
));
mpiio_runtime
->
file_record_array
=
malloc
(
mpiio_runtime
->
file_array_size
*
sizeof
(
struct
darshan_mpiio_file
));
if
(
!
mpiio_runtime
->
file_runtime_array
||
!
mpiio_runtime
->
file_record_array
)
{
mpiio_runtime
->
file_array_size
=
0
;
return
;
}
memset
(
mpiio_runtime
->
file_runtime_array
,
0
,
mpiio_runtime
->
file_array_size
*
sizeof
(
struct
mpiio_runtime_file
));
memset
(
mpiio_runtime
->
file_record_array
,
0
,
mpiio_runtime
->
file_array_size
*
sizeof
(
struct
darshan_mpiio_file
));
/* TODO: can we move this out of here? perhaps register_module returns rank? */
DARSHAN_MPI_CALL
(
PMPI_Comm_rank
)(
MPI_COMM_WORLD
,
&
my_rank
);
return
;
}
static
void
mpiio_disable_instrumentation
()
{
assert
(
mpiio_runtime
);
MPIIO_LOCK
();
instrumentation_disabled
=
1
;
MPIIO_UNLOCK
();
return
;
}
static
void
mpiio_get_output_data
(
void
**
buffer
,
int
*
size
)
{
assert
(
mpiio_runtime
);
/* TODO: clean up reduction stuff */
*
buffer
=
(
void
*
)(
mpiio_runtime
->
file_record_array
);
*
size
=
mpiio_runtime
->
file_array_ndx
*
sizeof
(
struct
darshan_mpiio_file
);
return
;
}
static
void
mpiio_shutdown
()
{
struct
mpiio_runtime_file_ref
*
ref
,
*
tmp
;
HASH_ITER
(
hlink
,
mpiio_runtime
->
fd_hash
,
ref
,
tmp
)
{
HASH_DELETE
(
hlink
,
mpiio_runtime
->
fd_hash
,
ref
);
free
(
ref
);
}
HASH_CLEAR
(
hlink
,
mpiio_runtime
->
file_hash
);
/* these entries are freed all at once below */
free
(
mpiio_runtime
->
file_runtime_array
);
free
(
mpiio_runtime
->
file_record_array
);
free
(
mpiio_runtime
);
mpiio_runtime
=
NULL
;
return
;
}
#if 0
static void posix_runtime_initialize(void);
static struct posix_runtime_file* posix_file_by_name(const char *name);
static struct posix_runtime_file* posix_file_by_name_setfd(const char* name, int fd);
static struct posix_runtime_file* posix_file_by_fd(int fd);
static void posix_file_close_fd(int fd);
static void posix_disable_instrumentation(void);
static void posix_prepare_for_reduction(darshan_record_id *shared_recs,
int *shared_rec_count, void **send_buf, void **recv_buf, int *rec_size);
static void posix_reduce_records(void* infile_v, void* inoutfile_v,
...
...
@@ -530,17 +637,6 @@ static int posix_file_compare(const void* a, const void* b)
/* ***************************************************** */
static void posix_disable_instrumentation()
{
assert(posix_runtime);
POSIX_LOCK();
instrumentation_disabled = 1;
POSIX_UNLOCK();
return;
}
static void posix_prepare_for_reduction(
darshan_record_id *shared_recs,
int *shared_rec_count,
...
...
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