File dmtcp.changes of Package dmtcp
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Tue Aug 13 04:49:06 UTC 2013 - kapil@ccs.neu.edu
- New upstream release 1.2.8.
- Removed dmtcp-includes.patch as it has been included in the new tarball.
* Release Notes:
- Bug fixes for newer ARM CPUs --- especially addressing cache coherency issues
of multi-core ARM, and the more aggressive out-of-order execution for newer
ARM CPUs.
- On restart, gzip zombie processes associated with compressed checkpoint
images were not always reaped properly. This is now handled correctly.
- Peliminary support for using C++11 compilers to compile DMTCP (but not yet
intensively tested).
- Minor bug fixes.
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Wed Jul 18 10:15:09 UTC 2012 - aj@suse.de
- Add missing include for <sys/resource.h> (glibc 2.16)
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Thu Jun 28 15:13:02 UTC 2012 - kapil@ccs.neu.edu
- Updating to upstream release 1.2.5
* Release Notes:
- epoll, eventfd, and signalfd are now supported
- The ARM architecture for Linux is now supported.
(Linux currently supports 32-bit ARM EABI.)
- The name "DMTCP module" is changed to "DMTCP plugin" (more common terminology).
User plugins can greatly customize the behavior of DMTCP.
- The dmtcp_checkpoint cmd was resetting the checkpoint interval even
if the user did not specify the -i/--interval flag. This is now fixed.
- Improved support for a planned Fedora package for DMTCP
- On resume from ckpt, zero pages were sometimes expanded (increasing the
memory footprint). This affected Java. This is now fixed.
- Some bug fixes were provided for programs that intensively create
and destroy threads (e.g. OpenMP, Java)
- After restart, the floating point rounding mode (fesetround) was not being
properly restored. This is now fixed.
- There have been requests for support of DMTCP for PBS/TORQUE. Some partial
support has now been added to the svn only (_not_ to this release).
Please write to us if you need this support from DMTCP.
- The FAQ at the DMTCP web site was expanded.
- 15% slowdown observed in an unusual case:
A user reports that if your program frequently does both of these:
a. is heavily multi-threaded; and
b. calls malloc/free intensively;
This has been diagnosed. It was seen too close to this 1.2.5 release,
and so the fix will be provided for the next release (and in the public svn).
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Sat Mar 24 15:41:38 UTC 2012 - dimstar@opensuse.org
- Add dmctp-gcc47.patch: Fix build with gcc 4.7
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Thu Feb 16 03:01:30 UTC 2012 - kapil@ccs.neu.edu
- Some changes were accidently reverted in the previous two commits.
Adding them back.
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Mon Jan 23 23:13:13 UTC 2012 - kapil@ccs.neu.edu
- There was a minor glitch in the previous tarball. This one fixes it.
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Mon Jan 23 22:12:53 UTC 2012 - kapil@ccs.neu.edu
- Updating to upstream release 1.2.4
* Release Notes:
- Preparing for upstream release 1.2.4.
+ Release Notes from upstream:
- There is now much more robust treatment of processes that rapidly
create and destroy threads. This was the case for the Java JVM
(both for OpenJDK and Oracle (Sun) Java). This was also the case
for Cilk. Cilk++ was not tested. We believe this new DMTCP to now be
highly robust -- and we would appreciate receiving a notification if
you find a Java or Cilk program that is not compatible with DMTCP.
- Zero-mapped pages are no longer expanded and saved to the DMTCP checkpoint
image. For Java programs (and other programs using zero-mapped
pages for their allocation arena or garbage collecotr), the checkpoint
image will now be much smaller. Checkpoint and restart times
will also be faster.
- DMTCP_ROOT/dmtcp/doc directory added with documentation of some
DMTCP internals. architecture-of-dmtcp.pdf is a good place to
start reading for those who are curious.
- The directory of example modules was moved to DMTCP_ROOT/test/module.
This continues to support third-part wrappers around system calls,
can registering functions to be called by DMTCP at interesting times
(like pre-checkpoint, post-resume, post-restart, new thread created, etc.).
- This version of MTCP (inside this package) should be compatible with
the checkpoint-restart service of Open MPI. The usage will be
documented soon through the Open MPI web site. As before, an alternative
is to simply start Open MPI inside DMTCP, and let DMTCP treat all of
Open MPI as a "black box" that happens to be a ditributed computation
- A new --prefix command line flag has been added to dmtcp_checkpoint.
It operates similarly to the flag of the same name in Open MPI.
For distributed computations, remote processes will use the prefix
as part of the path to find the remote dmtcp_checkpoint command.
This is useful when a gateway machine has a different directory
structure from the remote nodes.
- configure --enable-ptrace-support now uses ptrace module (more modular code).
The ptrace module should also be more robust. It now fixes some
additional cases that were missing earlier
- ./configure --enable-unique-checkpoint-filenames was not respecting
bin/dmtcp_checkpoint --checkpoint-open-files . This is now fixed.
- If the coordinator received a kill request in the middle of a checkpoint,
the coordinator could freeze or die. This has now been fixed, with
the expected behavior: Kill the old computation that is in the
middle of a checkpoint, and then allow any new computations to begin.
- dmtcp_inspector utility was broken in last release; now fixed
- configure --enable-forked-checkpoint was broken in the last release.
It is fixed again.
- Many smaller bug fixes.
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Sun Dec 4 16:32:33 UTC 2011 - coolo@suse.com
- don't fail on unknown options from %configure
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Sun Sep 18 17:17:12 UTC 2011 - jengelh@medozas.de
- Remove redundant tags/sections from specfile
(cf. packaging guidelines)
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Tue Jul 26 01:08:13 UTC 2011 - kapil@ccs.neu.edu
- Top level configure files updated to fix configure error.
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Fri Jul 22 19:22:17 UTC 2011 - kapil@ccs.neu.edu
- Updating to upstream release 1.2.3.
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Sat Jul 2 23:03:26 UTC 2011 - kapil@ccs.neu.edu
* 1.2.2 release notes from upstream:
- A new module system, allowing users to write their own extensions to DMTCP,
including wrappers around library calls. See the module subdirectory for
examples.
- ./configure --enable-m32 was not working in DMTCP 1.2.1. It works again now.
- more bug fixes and robustness testing. Tested on kernels ranging from Linux
2.6.5 to the latest kernel. Tested especially on the Linux distributions: Red
Hat/Fedora, Debian/Ubuntu, SuSe/OpenSUSE; although we don't know of any Linux
distributions where it fails to run.
- 'screen' did not checkpoint properly on machines using LDAP authentication.
This could also affect processes using 'bash'. This has been fixed.
- Furthermore, recent versions of 'screen' began calling 'utempter' when
present Support for 'utempter' and some other setuid processes has been
added.
- Removed the requirement for libc.a in building DMTCP, since Red Hat does not
include libc.a in its standard repository.
- ./configure --enable-ptrace now more robust. Still labelled "experimental"
for this release. You will need to enable this if you want to checkpoint gdb
sessions, programs running under strace, and certain other applications.
- ./configure --enable-fast-ckpt-restart can make ckpt/restart faster by using
'mmap'. You will need to set the environment variable DMTCP_GZIP to "0" if
you use this. This feature is still experimental, and there are many other
tricks for speeding up ckpt/restart. Please talk to the developers if this is
important for your application.
- Experimental support added for HBICT ( hbict.sf.net ). This provides support
for incremental and differential checkpointing. However, this is still
ongoing work.
- Work has begun on improved support for process migration between different
Linux kernels and distributions. Simple applications should migrate. Please
talk to us if this feature is important to you.
- We do not yet support the 'epoll' and 'inotify' Linux system calls. Recently,
there has been some demand for this, and we intend to raise the priority.
Please talk to us if this feature is important to you.
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Wed Jun 22 15:57:30 UTC 2011 - kapil@ccs.neu.edu
- Exclude mtcp.c from installation.
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Wed Jun 22 06:19:05 UTC 2011 - kapil@ccs.neu.edu
- Updating to upstream release 1.2.2.
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Fri Jun 17 07:18:09 UTC 2011 - kapil@ccs.neu.edu
- libdmtcpaware.a moved to libdmtcpaware-devel-static package.
- dmtcpaware examples moved to libdmtcpaware-doc package.
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Fri Jun 10 15:30:20 UTC 2011 - kapil@ccs.neu.edu
- Build requirements updated.
- Minor cleanup.
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Tue Jun 7 14:27:08 UTC 2011 - kapil@ccs.neu.edu
- Added "ExclusiveArch %ix86 x86_64" and removed ExcludeArch lines.
- buildroot not cleaned in %install section.
Sat May 14 00:09:03 UTC 2011 - kapil@ccs.neu.edu
- dependency on libc.a removed for mtcp_restart.
- Several other bug fixes and improvements.
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Sat Mar 12 23:41:14 UTC 2011 - kapil@ccs.neu.edu
- Updated to release 1.2.1
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Fri Mar 11 04:02:40 UTC 2011 - kapil@ccs.neu.edu
- Remove debug flags.
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Fri Mar 11 01:56:49 UTC 2011 - kapil@ccs.neu.edu
- Updated to revision 935.
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Thu Mar 10 03:37:28 UTC 2011 - kapil@ccs.neu.edu
- Reverting tarball to prev version.
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Thu Mar 10 02:37:40 UTC 2011 - kapil@ccs.neu.edu
- Testing fix for restart under 32-bit OSes.
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Thu Mar 10 01:18:53 UTC 2011 - kapil@ccs.neu.edu
- Updated tarball with compiler warnings fixed.
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Thu Mar 10 01:10:32 UTC 2011 - kapil@ccs.neu.edu
- Added python to dependency list for running make check.
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Thu Mar 10 00:49:13 UTC 2011 - kapil@ccs.neu.edu
- Preparing for release 1.2.1. Pulled updates from the latest dmtcp svn.
