ChangeLog 13.8 KB
Newer Older
Philip Carns's avatar
Philip Carns committed
1
2
3
--------------------------
Darshan Release Change Log
--------------------------
4

5
darshan-2.2.8-pre3
6
=============
7
8
9
* Add wrappers for POSIX AIO operations (fixes tracking of underlying POSIX
  operations resulting from nonblocking MPI-IO operations.  Bug reported by
  David Shrader.)
10
11
12
13
14
15
* Fix compile-time errors when Darshan is configured for use with MPICH 3.x 
  installations with const correct MPI function prototypes. Also affects 
  MPICH 1.5+ installations with optional const support.  Reported by Yushu Yao.
* Fix segmentation fault when using LD_PRELOAD instrumentation on programs
  that use MPI_Init_thread() rather than MPI_Init().  Reported by Myriam
  Botalla.
16
17
18
19
20
21
22
23
* Improved ability to analyze the activity to particular files opened by an
  application
  - Added --file-list and --file-list-detailed options to darshan-parser to 
    lists files present within a log file along with summary statistics.
  - Added --file optoin to darshan-convert to filter out activity for a
    specific file from a Darshan log
  - darshan-summary-per-file.sh script to generate a separate pdf summary for
    each file opened by an application, developed by Rob Latham.
24

25
darshan-2.2.7
Philip Carns's avatar
Philip Carns committed
26
27
28
=============
* Updated Cray installation documentation for cleaner integration in Cray
  environments
Philip Carns's avatar
Philip Carns committed
29
30
31
32
* Fix bug that recorded incorrect device ID (and therefore incorrect mount
  point mapping) if stat() was called before open() on a file
* Store version number of the darshan runtime library in the log file 
  metadata (see lib_ver in darshan-parser output)
Philip Carns's avatar
Philip Carns committed
33

Philip Carns's avatar
Philip Carns committed
34
darshan-2.2.6
35
=============
36
* Bug fixes:
37
  - make sure to honor user-specified hints passed in at runtime
38
39
    via the DARSHAN_LOGHINTS env variable.
  - include fread and fwrite in darshan-job-summary.pl read and write counts
40
  - fix segmentation fault on invalid arguments to darshan-parser
Philip Carns's avatar
Philip Carns committed
41
42
43
44
45
46
47
48
49
50
51
52
53
* Performance enhancements:
  - collect mount point information at rank 0 and broadcast to all 
    processes to avoid excess file system traffic on startup
  - change default MPI-IO hints for writing log file to
    romio_no_indep_rw=true and cb_nodes=4 to improve log creation performance
* Install libdarshan-util and headers during installation process for
  darshan-util; patch contributed by Matthieu Dorier
* Detect PMPI support at link time when using compiler scripts produced
  by the darshan-gen-* utilities.  This avoids link problems when Darshan
  compiler wrappers are used with the ADIOS dummy MPI library; reported
  by Jingqing Mu
* Support MPICH_{CC/CXX/F77} environment variables in compiler scripts
  produced by the darshan-gen-* utilities
Philip Carns's avatar
Philip Carns committed
54
55
* Add instrumentation of startup time, enabled via DARSHAN_INTERNAL_TIMING
  environment variable
Philip Carns's avatar
Philip Carns committed
56
57
* Rename cp-shutdown-bench test utility to darshan-shutdown-bench and enable
  benchmarking hooks in library by default so that darshan-shutdown-bench 
58
  can be used with any Darshan installation
59
* Remove deprecated --enable-st-dev-workaround configure option
60
* Misc. documentation updates
61

62
darshan-2.2.5
63
64
65
66
=============
* Fix bug in mount point identification when --enable-stat-at-open option is
  not used.  In Darshan 2.2.4, some file entries were recorded as using the "/"
  file system regardless of their location.
67
68
* Update patches and documentation for Cray xt-asyncpe environment 5.12 or 
  higher; contributed by Yushu Yao.
69
70
* Update documentation to no longer recommend --enable-stat-at-open option on 
  any systems
71
72
* Fix unresolved symbols error when linking non-MPI programs with Cray
  compiler.  Reported by Yushu Yao.
73
74
75
76
77
78
79
80
* Use fstat() in place of stat() for detecting file information when
  --enable-stat-at-open option is used
* Use statfs() at startup to detect default block size for supported file
  systems
* Added --enable-group-readable-logs configure option, which will cause
  Darshan to to generate log files with the group read permission bit set.
  This option is useful in conjunction with deployments that set the setgid
  bit on log directories.
81

Philip Carns's avatar
Philip Carns committed
82
darshan-2.2.4
Philip Carns's avatar
Philip Carns committed
83
=============
Philip Carns's avatar
Philip Carns committed
84
85
* Disable extra stat() of newly opened files by default.  This improves 
  performance on shared files for some platforms.  Reported by Yushu Yao.
Philip Carns's avatar
Philip Carns committed
86
87
88
  - prevents Darshan from reporting SIZE_AT_OPEN, FILE_ALIGNENT, and 
    DARSHAN_FILE_NOT_ALIGNED values
  - features can still be enabled via --enable-stat-at-open option
89
90
* Fix missing -lz in post ld flags reported by Yushu Yao.  Fixes a link-time
  error for some corner-case applications.
91
92
* Fix bug in Cray compiler script patches that was setting compiler flags 
  incorrectly.  Reported by Yushu Yao.
93
94
  WARNING: if you are using a previous Darshan release (2.2.3 through
  2.2.4-pre4) on a Cray platform, please re-patch your compiler scripts.
95
96
97
98
* Update darshan-gen-* scripts to support the potential for additonal LDFLAGS
  or CFLAGS that appear before the object or source file in the compile or
  link commands.  This fixes compatibility with some mvapich2 installations,
  reported by Dragos Constantin.
Philip Carns's avatar
Philip Carns committed
99

Philip Carns's avatar
Philip Carns committed
100
darshan-2.2.3
Philip Carns's avatar
Philip Carns committed
101
102
103
104
=============
* improved Cray XE6 support
  - support for GNU, PGI, Cray, Pathscale, and Intel compilers
  - patch adding Darshan capability to system compiler scripts
Philip Carns's avatar
Philip Carns committed
105
106
107
  - software module, including testing and features contributed 
    by Yushu Yao and Katie Antypas of The National Energy Research 
    Scientific Computing Center (NERSC)
Philip Carns's avatar
Philip Carns committed
108
  - improved documentation
Philip Carns's avatar
Philip Carns committed
109
110
111
112
* minor bug fixes:
  - properly detect cxx library name when generating BG/Q compiler wrappers
  - improve timing mechanism for cp-shutdown-bench benchmark
  - improve hashing to avoid log file name collisions
Philip Carns's avatar
Philip Carns committed
113

114
115
116
117
118
119
120
121
darshan-2.2.2
=============
* bug fixes:
  - remove debugging message that was inadvertently included in
    MPI_File_sync() wrapper
  - fix potential hang if the --with-log-path-by-env argument was used at 
    configure time but the environment variable was not set at run time

Philip Carns's avatar
Philip Carns committed
122
darshan-2.2.1
Philip Carns's avatar
Philip Carns committed
123
124
125
=============
* significant improvements to how counters are handled in multi-threaded
  applications
Philip Carns's avatar
Philip Carns committed
126
127
* initial (rough) documentation for using Darshan in Cray
  programming environments with static linking
Philip Carns's avatar
Philip Carns committed
128
* bug fixes:
Philip Carns's avatar
Philip Carns committed
129
130
  - escape special characters in mount point paths in darshan-job-summary.pl
    (reported by Mouhamed Gueye)
Philip Carns's avatar
Philip Carns committed
131
132
133
134
135
  - workarounds for various runtime problems with cuserid() and stat() in  
    Cray environments
  - build problems with darshan-utils on some versions of OSX
  - accurate shared file statistics for libraries that use deferred opens

136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
darshan-2.2.0
=============
* split darshan into separate packages:
  - darshan-runtime: for runtime instrumentation
  - darshan-utils: for processing darshan log files
* changed default output file name for darshan-job-summary.pl to be based on
  input file name rather than summary.pdf
* reorganized init and finalize routines so that can be linked separately (to
  allow for easier integration with other instrumentation tools)
* add -cc, -cxx, -f77, -f90, and -fc support to compiler scripts generated by
  the darshan-gen-*.pl scripts
* bug fixes:
  - potential MAX_BYTE overflow on 32 bit systems
  - incorrect pread and pwrite offset tracking
  - corrections to darshan-job-summary variance table
  - better runtime error handling if bzip or gnuplot tools are insufficient
  - improvements to time range in darshan-job-summary graphs
153
154
155
156
* documentation:
  - improved documentation for both the darshan-runtime and darshan-util
  portions of Darshan can be found in the respective doc/ subdirectory for
  each
157

158
159
160
161
162
darshan-2.1.2
=============
* improved error handling when writing log files.  If a write fails then the
  log file will be deleted and a warning will be printed to stderr.

163
darshan-2.1.1
164
=============
Philip Carns's avatar
Philip Carns committed
165
166
167
168
169
170
171
172
173
* new darshan-convert command line utility for converting existing log files,
  with optional anonymization and optional bzip2 compression
* bzip2 support in command line utilities (but not in the darshan library
  itself)
* updated log file format that allows for string key/value pairs to be stored
  in the header
* added ability to set MPI-IO hints when writing darshan log
  at configure time: --with-log-hints
  at run time: DARSHAN_LOGHINTS environment variable
174
175
* bug fix contributed by Sandra Schröder: use case-insensitive search for MPI
  symbols in Fortran wrapper script
Philip Carns's avatar
Philip Carns committed
176
177
* performance bug fix: remove unecessary call to MPI_File_set_size when
  writing log
178
179
180
* added --with-logpath-by-env configure option to allow absolute 
  log path to be specified via environment variable

181
182
183
184
185
186
187
188
189
190
191
darshan-2.1.0
=============
* additinoal environment variables to control log, jobid and
  alignment parameters
* additional configure tests to improve portability
* bug fixes for darshan-parser --perf calucations
* support for MPI1.x
* support for OpenMPI
* support for PGI, Intel compilers
* new libdarshan.so dynamic library for use with LD_PRELOAD

192
193
194
195
196
197
198
199
200
201
202
203
204
darshan-2.0.2
=============
* added a random identifier to job logs (to avoid collisions from multiple
  application instances within a single scheduler job)
* improved installation and library path management for darshan-job-summary.pl
* improved error handling in darshan-job-summary.pl
* additional derived statistics categories for darshan-parser output:
    --all   : all sub-options are enabled
    --base  : darshan log field data [default]
    --file  : total file counts
    --perf  : derived perf data
    --total : aggregated darshan field data

205
206
darshan-2.0.1
=============
Philip Carns's avatar
Philip Carns committed
207
208
209
* bug fix to variance/minimum calculations on shared files
* switch to automatic generation of all MPI compiler scripts using
  darshan-gen-* tools
210
211
212
213
* new run time environment variable: DARSHAN_INTERNAL_TIMING.  If set at job
  execution time, it will cause Darshan to time its own internal data 
  aggregation routines and print the results to stdout at rank 0.

214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
darshan-2.0.0
=============
* new output file format that is portable across architectures
  NOTE: Darshan 1.x output files are incompatible with the tools in this 
  release unless they were generated on a ppc32 architecture (Blue Gene)
* 8 new counters that record the rank of the fastest and slowest process that
  opened each shared file, along with the number of seconds and number of
  bytes consumed by those processes.  It also reports the variance in both
  time and amount of data.
* new --with-jobid-env configure argument to support recording job identifiers
  from different schedulers
* job ID is now recorded within the Darshan log in addition to in the file
  name
* darshan-job-summary.pl:
  * opens output files directly without using intermediate darshan-parser output
  * table showing data usage per file system
Philip Carns's avatar
Philip Carns committed
230
  * table showing I/O variance in shared files
231
232
233
* Fixes for bugs reported by Noah Watkins: 
  * avoid name collision in hashing function
  * divide by zero error in darshan-job-summary.pl
234

235
236
237
238
darshan-1.1.14
==============
* fixed erroneous incompatibility warning when opening old logs in darshan-parser

239
240
241
242
darshan-1.1.13
==============
* updated compiler scripts to fix link order in some cases with -lhdf5

243
244
245
246
247
248
249
darshan-1.1.12
==============
* improved mapping of file records to mount points
* new page in darshan-job-summary.pl output showing timelines of file access
* bug fix to "fast" mpif90 script
* checkpoint/restart ability in parallel fsstats script

Philip Carns's avatar
Philip Carns committed
250
251
252
253
254
darshan-1.1.11
==============
* Bug fix for lseek, pread, and pwrite when used in 32 applications without large file support
* Improved experimental darshan-gen-cc.pl script
* Added new experimental darshan-gen-cxx.pl script
Philip Carns's avatar
Philip Carns committed
255

256
257
258
259
260
darshan-1.1.10
==============
* Bug fix for files that are accessed with stat() but never opened
* Workaround zlib problems with 64 bit offsets on 32 bit architectures

Philip Carns's avatar
Philip Carns committed
261
262
263
264
265
266
267
darshan-1.1.9
=============
* Added "fast" version of each BG/P compiler
* Added experimental scripts in test directory to run fsstats in parallel
* Kevin Harms: Added experimental utilities for loading darshan results into SQL
* Use exclusive flag when opening output file (to protect against file name collision)
* Rob Ross: updates to allow command line tools to build on Darwin
268
* Bug fix for pnetcdf configure problem reported by Rob Latham; darshan now always pulls in MPI_Wtime() symbol at link time
Philip Carns's avatar
Philip Carns committed
269

270
271
272
darshan-1.1.8
=============
* Added tracking of file system type and mount point for each file
Philip Carns's avatar
Philip Carns committed
273
274
275
* Added tracking of file size at open time (CP_SIZE_AT_OPEN)
* Moved sync cost to be counted in cumulative write time rather than cumulative metadata time
* Added sync as a separate category in darshan-job-summar.pl counters
276
277
278
279
280
281
* Bug fix to most frequent access size table in darshan-job-summary.pl
* Converted all utilities to use darshan-logutils api for reading output files
* Added backwards compatibility to darshan-logutils routines
* Kevin Harms: Added darshan-analyzer utility to summarize usage of MPI-IO, pNetCDF, HDF5, and shared files across a set of output files
* Fixed bug field listing for darshan-diff utility

282
283
284
285
darshan-1.1.7
=============
* Minor fix for a compile warning

286
287
288
289
darshan-1.1.6
=============
* Kevin Harms: bug fix for segfault in apps that use MPI_Init_thread()

290
291
292
293
294
darshan-1.1.5
=============
* Limit PMPI usage in library to fewer functions
* Update PMPI detection in compiler scripts to ignore functions unused by Darshan

Philip Carns's avatar
Philip Carns committed
295
296
297
298
299
300
301
302
303
304
darshan-1.1.4
=============
* Track files opened via Parallel NetCDF
* Track files opened via HDF5
* Record slowest individual POSIX read and write times along with access size for those operations
* Inspect symbols at compile time to determine whether to enable Darshan or not based on the presence of MPI and PMPI symbols
* Use GNU and IBM compilers from path rather than hard coded location
* Simplify warning message if unable to open log file
* Remove unused internal benchmark routines

Philip Carns's avatar
Philip Carns committed
305
306
307
308
darshan-1.1.3
=============
* Updated compiler scripts for V1R4 driver on BlueGene/P

309
310
311
312
darshan-1.1.2
=============
* Added *_r versions of each IBM compiler script on BlueGene/P

Philip Carns's avatar
Philip Carns committed
313
314
315
316
317
318
319
320
321
darshan-1.1.1
=============
* Set default permissions to 0400 (user read only) for output files
* Automatically disable Darshan at link time if common PMPI libraries are detected in the command line
* Experimental tool (darshan-gen-cc.pl) to automatically generate Darshan-enabled mpicc scripts

darshan-1.1.0
=============
* Initial public release