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Cristian Simarro
darshan
Commits
2b1649df
Commit
2b1649df
authored
Jan 24, 2017
by
Glenn K. Lockwood
Browse files
this probably shouldn't have been checked in
parent
1561ab23
Changes
1
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darshan-runtime/lib/darshan-lustre_old.c
deleted
100644 → 0
View file @
1561ab23
/*
* Copyright (C) 2015 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*
*/
#define _XOPEN_SOURCE 500
#define _GNU_SOURCE
#include
"darshan-runtime-config.h"
#include
<stdio.h>
#include
<unistd.h>
#include
<sys/types.h>
#include
<sys/stat.h>
#include
<time.h>
#include
<stdlib.h>
#include
<assert.h>
#include
<pthread.h>
#include
<sys/ioctl.h>
/* XXX stick this into autoconf .h */
#include
<lustre/lustre_user.h>
#include
"uthash.h"
#include
"darshan.h"
#include
"darshan-dynamic.h"
#include
"darshan-lustre.h"
struct
lustre_runtime
*
lustre_runtime
=
NULL
;
static
pthread_mutex_t
lustre_runtime_mutex
=
PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
;
static
int
instrumentation_disabled
=
0
;
static
int
my_rank
=
-
1
;
static
void
lustre_runtime_initialize
(
void
);
static
void
lustre_begin_shutdown
(
void
);
static
void
lustre_get_output_data
(
MPI_Comm
mod_comm
,
darshan_record_id
*
shared_recs
,
int
shared_rec_count
,
void
**
lustre_buf
,
int
*
lustre_buf_sz
);
static
void
lustre_shutdown
(
void
);
static
int
lustre_record_compare
(
const
void
*
a_p
,
const
void
*
b_p
);
static
void
lustre_record_reduction_op
(
void
*
infile_v
,
void
*
inoutfile_v
,
int
*
len
,
MPI_Datatype
*
datatype
);
#define LUSTRE_LOCK() pthread_mutex_lock(&lustre_runtime_mutex)
#define LUSTRE_UNLOCK() pthread_mutex_unlock(&lustre_runtime_mutex)
#define LUSTRE_RECORD_SIZE( osts ) ( sizeof(struct darshan_lustre_record) + sizeof(int64_t) * (osts - 1) )
void
darshan_instrument_lustre_file
(
const
char
*
filepath
,
int
fd
)
{
struct
lustre_record_runtime
*
rec_rt
;
struct
darshan_lustre_record
*
rec
;
struct
darshan_fs_info
fs_info
;
darshan_record_id
rec_id
;
int
limit_flag
;
int
i
;
struct
lov_user_md
*
lum
;
size_t
lumsize
=
sizeof
(
struct
lov_user_md
)
+
LOV_MAX_STRIPE_COUNT
*
sizeof
(
struct
lov_user_ost_data
);
size_t
rec_size
;
LUSTRE_LOCK
();
/* make sure the lustre module is already initialized */
lustre_runtime_initialize
();
/* if we can't issue ioctl, we have no counter data at all */
if
(
(
lum
=
calloc
(
1
,
lumsize
))
==
NULL
)
return
;
/* find out the OST count of this file so we can allocate memory */
lum
->
lmm_magic
=
LOV_USER_MAGIC
;
lum
->
lmm_stripe_count
=
LOV_MAX_STRIPE_COUNT
;
/* -1 means ioctl failed, likely because file isn't on Lustre */
if
(
ioctl
(
fd
,
LL_IOC_LOV_GETSTRIPE
,
(
void
*
)
lum
)
==
-
1
)
{
free
(
lum
);
return
;
}
rec_size
=
LUSTRE_RECORD_SIZE
(
lum
->
lmm_stripe_count
);
{
/* broken out for clarity */
void
*
end_of_new_record
=
(
char
*
)
lustre_runtime
->
next_free_record
+
rec_size
;
void
*
end_of_rec_buffer
=
(
char
*
)
lustre_runtime
->
record_buffer
+
lustre_runtime
->
record_buffer_max
;
limit_flag
=
(
end_of_new_record
>
end_of_rec_buffer
);
}
/* register a Lustre file record with Darshan */
fs_info
.
fs_type
=
-
1
;
darshan_core_register_record
(
(
void
*
)
filepath
,
strlen
(
filepath
),
DARSHAN_LUSTRE_MOD
,
1
,
limit_flag
,
&
rec_id
,
&
fs_info
);
/* if record id is 0, darshan has no more memory for instrumenting */
if
(
rec_id
==
0
)
{
free
(
lum
);
LUSTRE_UNLOCK
();
return
;
}
/* search the hash table for this file record, and initialize if not found */
HASH_FIND
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
&
rec_id
,
sizeof
(
darshan_record_id
),
rec_rt
);
if
(
!
rec_rt
)
{
/* allocate a new lustre record and append it to the array */
rec_rt
=
&
(
lustre_runtime
->
record_runtime_array
[
lustre_runtime
->
record_count
]);
rec_rt
->
record
=
lustre_runtime
->
next_free_record
;
rec_rt
->
record_size
=
rec_size
;
lustre_runtime
->
next_free_record
=
(
char
*
)(
lustre_runtime
->
next_free_record
)
+
rec_size
;
lustre_runtime
->
record_buffer_used
+=
rec_size
;
rec
=
rec_rt
->
record
;
rec
->
rec_id
=
rec_id
;
rec
->
rank
=
my_rank
;
/* implicit assumption here that none of these counters will change
* after the first time a file is opened. This may not always be
* true in the future */
if
(
fs_info
.
fs_type
!=
-
1
)
{
rec
->
counters
[
LUSTRE_OSTS
]
=
fs_info
.
ost_count
;
rec
->
counters
[
LUSTRE_MDTS
]
=
fs_info
.
mdt_count
;
}
else
{
rec
->
counters
[
LUSTRE_OSTS
]
=
-
1
;
rec
->
counters
[
LUSTRE_MDTS
]
=
-
1
;
}
rec
->
counters
[
LUSTRE_STRIPE_SIZE
]
=
lum
->
lmm_stripe_size
;
rec
->
counters
[
LUSTRE_STRIPE_WIDTH
]
=
lum
->
lmm_stripe_count
;
rec
->
counters
[
LUSTRE_STRIPE_OFFSET
]
=
lum
->
lmm_stripe_offset
;
for
(
i
=
0
;
i
<
lum
->
lmm_stripe_count
;
i
++
)
rec
->
ost_ids
[
i
]
=
lum
->
lmm_objects
[
i
].
l_ost_idx
;
free
(
lum
);
HASH_ADD
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
record
->
rec_id
,
sizeof
(
darshan_record_id
),
rec_rt
);
lustre_runtime
->
record_count
++
;
}
LUSTRE_UNLOCK
();
return
;
}
static
void
lustre_runtime_initialize
()
{
int
mem_limit
;
int
max_records
;
struct
darshan_module_funcs
lustre_mod_fns
=
{
.
begin_shutdown
=
&
lustre_begin_shutdown
,
.
get_output_data
=
&
lustre_get_output_data
,
.
shutdown
=
&
lustre_shutdown
};
/* don't do anything if already initialized or instrumenation is disabled */
if
(
lustre_runtime
||
instrumentation_disabled
)
return
;
/* register the lustre module with darshan-core */
darshan_core_register_module
(
DARSHAN_LUSTRE_MOD
,
&
lustre_mod_fns
,
&
my_rank
,
&
mem_limit
,
NULL
);
/* return if no memory assigned by darshan core */
if
(
mem_limit
==
0
)
return
;
lustre_runtime
=
malloc
(
sizeof
(
*
lustre_runtime
));
if
(
!
lustre_runtime
)
return
;
memset
(
lustre_runtime
,
0
,
sizeof
(
*
lustre_runtime
));
/* allocate the full size of the memory limit we are given */
lustre_runtime
->
record_buffer
=
malloc
(
mem_limit
);
if
(
!
lustre_runtime
->
record_buffer
)
{
lustre_runtime
->
record_buffer_max
=
0
;
return
;
}
lustre_runtime
->
record_buffer_max
=
mem_limit
;
lustre_runtime
->
next_free_record
=
lustre_runtime
->
record_buffer
;
memset
(
lustre_runtime
->
record_buffer
,
0
,
lustre_runtime
->
record_buffer_max
);
/* Allocate array of Lustre runtime data. We calculate the maximum possible
* number of records that will fit into mem_limit by assuming that each
* record has the minimum possible OST count, then allocate that many
* runtime records. record_buffer will always run out of memory before
* we overflow record_runtime_array.
*/
max_records
=
mem_limit
/
sizeof
(
struct
darshan_lustre_record
);
lustre_runtime
->
record_runtime_array
=
malloc
(
max_records
*
sizeof
(
struct
lustre_record_runtime
));
if
(
!
lustre_runtime
->
record_runtime_array
)
{
lustre_runtime
->
record_buffer_max
=
0
;
free
(
lustre_runtime
->
record_buffer
);
return
;
}
memset
(
lustre_runtime
->
record_runtime_array
,
0
,
max_records
*
sizeof
(
struct
lustre_record_runtime
));
return
;
}
/**************************************************************************
* Functions exported by Lustre module for coordinating with darshan-core *
**************************************************************************/
static
void
lustre_begin_shutdown
(
void
)
{
assert
(
lustre_runtime
);
LUSTRE_LOCK
();
/* disable further instrumentation while Darshan shuts down */
instrumentation_disabled
=
1
;
LUSTRE_UNLOCK
();
return
;
}
static
void
lustre_get_output_data
(
MPI_Comm
mod_comm
,
darshan_record_id
*
shared_recs
,
int
shared_rec_count
,
void
**
lustre_buf
,
int
*
lustre_buf_sz
)
{
struct
lustre_record_runtime
*
file
;
int
i
,
ishared
;
int
*
rec_lengths
;
size_t
shared_rec_size
;
struct
darshan_lustre_record
*
red_send_buf
=
NULL
;
struct
darshan_lustre_record
*
red_recv_buf
=
NULL
;
MPI_Datatype
red_type
;
MPI_Aint
*
rec_offsets
;
MPI_Op
red_op
;
assert
(
lustre_runtime
);
/* if there are globally shared files, do a shared file reduction */
/* NOTE: the shared file reduction is also skipped if the
* DARSHAN_DISABLE_SHARED_REDUCTION environment variable is set.
*/
if
(
shared_rec_count
&&
!
getenv
(
"DARSHAN_DISABLE_SHARED_REDUCTION"
))
{
/* necessary initialization of shared records */
for
(
i
=
0
;
i
<
shared_rec_count
;
i
++
)
{
HASH_FIND
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
&
shared_recs
[
i
],
sizeof
(
darshan_record_id
),
file
);
assert
(
file
);
file
->
record
->
rank
=
-
1
;
}
/* sort the array of files descending by rank so that we get all of the
* shared files (marked by rank -1) in a contiguous portion at end
* of the array
*/
sort_lustre_records
();
/* make red_send_buf point to the first shared-file record */
ishared
=
lustre_runtime
->
record_count
-
shared_rec_count
;
red_send_buf
=
(
lustre_runtime
->
record_runtime_array
[
ishared
]).
record
;
/* allocate memory for the reduction output on rank 0 */
if
(
my_rank
==
0
)
{
shared_rec_size
=
lustre_runtime
->
record_buffer_used
-
((
char
*
)
red_send_buf
-
(
char
*
)
lustre_runtime
->
record_buffer
);
red_recv_buf
=
malloc
(
shared_rec_size
);
if
(
!
red_recv_buf
)
return
;
}
/* need to build rec_lengths (array of ints) and rec_offsets (array of ints) */
rec_lengths
=
malloc
(
sizeof
(
*
rec_lengths
)
*
shared_rec_count
);
rec_offsets
=
malloc
(
sizeof
(
*
rec_offsets
)
*
shared_rec_count
);
for
(
i
=
ishared
;
i
<
shared_rec_count
;
i
++
)
{
rec_lengths
[
i
]
=
(
lustre_runtime
->
record_runtime_array
[
i
]).
record_size
;
rec_offsets
[
i
]
=
(
char
*
)((
lustre_runtime
->
record_runtime_array
[
i
]).
record
)
-
(
char
*
)((
lustre_runtime
->
record_runtime_array
[
ishared
]).
record
);
}
/* ... */
DARSHAN_MPI_CALL
(
PMPI_Type_hindexed
)(
shared_rec_count
,
rec_lengths
,
rec_offsets
,
MPI_BYTE
,
&
red_type
);
DARSHAN_MPI_CALL
(
PMPI_Type_commit
)(
&
red_type
);
DARSHAN_MPI_CALL
(
PMPI_Op_create
)(
lustre_record_reduction_op
,
1
,
&
red_op
);
DARSHAN_MPI_CALL
(
PMPI_Reduce
)(
red_send_buf
,
red_recv_buf
,
shared_rec_count
,
red_type
,
red_op
,
0
,
mod_comm
);
/* clean up reduction state */
if
(
my_rank
==
0
)
{
memcpy
(
&
(
lustre_runtime
->
record_buffer
[
ishared
]),
red_recv_buf
,
shared_rec_size
);
free
(
red_recv_buf
);
}
else
{
lustre_runtime
->
record_count
-=
shared_rec_count
;
}
free
(
rec_lengths
);
free
(
rec_offsets
);
DARSHAN_MPI_CALL
(
PMPI_Type_free
)(
&
red_type
);
DARSHAN_MPI_CALL
(
PMPI_Op_free
)(
&
red_op
);
}
*
lustre_buf
=
(
void
*
)(
lustre_runtime
->
record_buffer
);
*
lustre_buf_sz
=
lustre_runtime
->
record_buffer_used
;
return
;
}
static
void
lustre_shutdown
(
void
)
{
assert
(
lustre_runtime
);
HASH_CLEAR
(
hlink
,
lustre_runtime
->
record_runtime_hash
);
free
(
lustre_runtime
->
record_runtime_array
);
free
(
lustre_runtime
->
record_buffer
);
free
(
lustre_runtime
);
lustre_runtime
=
NULL
;
return
;
}
/* compare function for sorting file records by descending rank */
static
int
lustre_record_compare
(
const
void
*
a_p
,
const
void
*
b_p
)
{
const
struct
lustre_record_runtime
*
a
=
a_p
;
const
struct
lustre_record_runtime
*
b
=
b_p
;
if
(
a
->
record
->
rank
<
b
->
record
->
rank
)
return
1
;
if
(
a
->
record
->
rank
>
b
->
record
->
rank
)
return
-
1
;
/* if ( a->record->rank == b->record->rank ) we MUST do a secondary
* sort so that the order of qsort is fully deterministic and consistent
* across all MPI ranks. Without a secondary sort, the sort order can
* be affected by rank-specific variations (e.g., the order in which
* files are first opened).
*/
return
0
;
}
/*
* Sort the record_runtimes and records by MPI rank to facilitate shared redux.
* This requires craftiness and additional heap utilization because the records
* (but not record_runtimes) have variable size. Currently has to temporarily
* duplicate the entire record_buffer; there is room for more memory-efficient
* optimization if this becomes a scalability issue.
*/
int
sort_lustre_records
()
{
int
i
;
struct
darshan_lustre_record
*
rec
;
struct
lustre_record_runtime
*
rec_rt
,
*
tmp_rec_rt
;
char
*
new_buf
,
*
p
;
/* Create a new buffer to store an entire replica of record_buffer. Since
* we know the exact size of record_buffer's useful data at this point, we
* can allocate the exact amount we need instead of record_buffer_max */
new_buf
=
malloc
(
lustre_runtime
->
record_buffer_used
);
p
=
new_buf
;
if
(
!
new_buf
)
return
1
;
/* qsort breaks the hash table, so delete it now to free its memory buffers
* and prevent later confusion */
HASH_ITER
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
rec_rt
,
tmp_rec_rt
)
HASH_DELETE
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
rec_rt
);
/* sort the runtime records, which is has fixed-length elements */
qsort
(
lustre_runtime
->
record_runtime_array
,
lustre_runtime
->
record_count
,
sizeof
(
struct
lustre_record_runtime
),
lustre_record_compare
);
/* rebuild the hash and array with the qsorted runtime records */
for
(
i
=
0
;
i
<
lustre_runtime
->
record_count
;
i
++
)
{
rec_rt
=
&
(
lustre_runtime
->
record_runtime_array
[
i
]);
HASH_ADD
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
record
->
rec_id
,
sizeof
(
darshan_record_id
),
rec_rt
);
}
/* create reordered record buffer, then copy it back in place */
for
(
i
=
0
;
i
<
lustre_runtime
->
record_count
;
i
++
)
{
rec_rt
=
&
(
lustre_runtime
->
record_runtime_array
[
i
]);
memcpy
(
p
,
rec_rt
->
record
,
rec_rt
->
record_size
);
/* fix record pointers within each runtime record too - pre-emptively
* point them at where they will live in record_buffer after we memcpy
* below */
rec_rt
->
record
=
(
struct
darshan_lustre_record
*
)((
char
*
)(
lustre_runtime
->
record_buffer
)
+
(
p
-
new_buf
));
p
+=
rec_rt
->
record_size
;
}
memcpy
(
lustre_runtime
->
record_buffer
,
new_buf
,
lustre_runtime
->
record_buffer_used
);
free
(
new_buf
);
return
0
;
}
/* this is just boilerplate reduction code that isn't currently used */
static
void
lustre_record_reduction_op
(
void
*
infile_v
,
void
*
inoutfile_v
,
int
*
len
,
MPI_Datatype
*
datatype
)
{
struct
darshan_lustre_record
tmp_record
;
struct
darshan_lustre_record
*
infile
=
infile_v
;
struct
darshan_lustre_record
*
inoutfile
=
inoutfile_v
;
int
i
,
j
;
assert
(
lustre_runtime
);
for
(
i
=
0
;
i
<*
len
;
i
++
)
{
memset
(
&
tmp_record
,
0
,
sizeof
(
struct
darshan_lustre_record
));
tmp_record
.
rec_id
=
infile
->
rec_id
;
tmp_record
.
rank
=
-
1
;
/* preserve only rank 0's value */
for
(
j
=
LUSTRE_OSTS
;
j
<
LUSTRE_NUM_INDICES
;
j
++
)
{
if
(
my_rank
==
0
)
{
tmp_record
.
counters
[
j
]
=
infile
->
counters
[
j
];
}
else
{
tmp_record
.
counters
[
j
]
=
inoutfile
->
counters
[
j
];
}
}
/* update pointers */
*
inoutfile
=
tmp_record
;
inoutfile
++
;
infile
++
;
}
return
;
}
/*
* Dump the memory structure of our records and runtime records
*/
void
print_lustre_runtime
(
void
)
{
int
i
,
j
;
struct
darshan_lustre_record
*
rec
;
/* print what we just loaded */
for
(
i
=
0
;
i
<
lustre_runtime
->
record_count
;
i
++
)
{
rec
=
(
lustre_runtime
->
record_runtime_array
[
i
]).
record
;
printf
(
"File %2d
\n
"
,
i
);
for
(
j
=
0
;
j
<
LUSTRE_NUM_INDICES
;
j
++
)
{
printf
(
" Counter %-2d: %10ld, addr %ld
\n
"
,
j
,
rec
->
counters
[
j
],
(
char
*
)(
&
(
rec
->
counters
[
j
]))
-
(
char
*
)(
lustre_runtime
->
record_buffer
)
);
}
for
(
j
=
0
;
j
<
rec
->
counters
[
LUSTRE_STRIPE_WIDTH
];
j
++
)
{
if
(
j
>
0
&&
j
%
2
==
0
)
printf
(
"
\n
"
);
printf
(
" Stripe %-2d: %10ld, addr %-9d"
,
j
,
rec
->
ost_ids
[
j
],
(
char
*
)(
&
(
rec
->
ost_ids
[
j
]))
-
(
char
*
)(
lustre_runtime
->
record_buffer
)
);
}
printf
(
"
\n
"
);
}
return
;
}
/*
* Dump the order in which records appear in memory
*/
void
print_array
(
void
)
{
int
i
;
struct
lustre_record_runtime
*
rec_rt
;
printf
(
"*** DUMPING RECORD LIST BY ARRAY SEQUENCE
\n
"
);
for
(
i
=
0
;
i
<
lustre_runtime
->
record_count
;
i
++
)
{
rec_rt
=
&
(
lustre_runtime
->
record_runtime_array
[
i
]);
printf
(
"*** record %d rank %d osts %d
\n
"
,
rec_rt
->
record
->
rec_id
,
rec_rt
->
record
->
rank
,
rec_rt
->
record
->
counters
[
LUSTRE_STRIPE_WIDTH
]);
}
}
void
print_hash
(
void
)
{
struct
lustre_record_runtime
*
rec_rt
,
*
tmp_rec_rt
;
printf
(
"*** DUMPING RECORD LIST BY HASH SEQUENCE
\n
"
);
HASH_ITER
(
hlink
,
lustre_runtime
->
record_runtime_hash
,
rec_rt
,
tmp_rec_rt
)
{
printf
(
"*** record %d rank %d osts %d
\n
"
,
rec_rt
->
record
->
rec_id
,
rec_rt
->
record
->
rank
,
rec_rt
->
record
->
counters
[
LUSTRE_STRIPE_WIDTH
]);
}
return
;
}
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* End:
*
* vim: ts=8 sts=4 sw=4 expandtab
*/
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