pre-release update

[simgrid.git] / ChangeLog

diff --git a/ChangeLog b/ChangeLog
index a99902a..5871304 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,10 +1,119 @@
-SimGrid (3.14) UNRELEASED; urgency=low
+SimGrid (3.15) UNRELEASED; urgency=low
+
+ The Ever Green Release. 
+ We fixed even the transient bugs on all target architectures:
+   Linux (CentOS, Debian, Ubuntu, Fedora), Mac OSX (Mavericks, El Capitan)
+   Windows, FreeBSD, NetBSD.
+
+ - Rename NetCards to NetPoints.
+   This was intended to help NS3 users, but that's not a netcard.
+   That's a point in the routing algorithm, let's avoid wrong simplifications.
+
+ MSG
+ - New: MSG_process_yield(). Stop and yield to other processes.
+ - New: MSG_process_daemon(). Daemon processes are automatically killed 
+   when the last non-daemon process terminates
+ - New: MSG_process_ref/unref(). Fiddle with the process refcounting.
+ - Renamed MSG_energy_plugin_init() -> MSG_host_energy_plugin_init()
+   to make room for the upcoming network energy plugin.
+ - Drop MSG_host_get_current_power_peak: duplicates MSG_host_get_speed
+
+ Java
+ - Ensure that an actor can kill itself with Process::exit()
+ - Kill the obscure NativeException. Nobody want to survive the issues
+   it denotes, so use JniException that is a RuntimeException (not to
+   be caught explicitly).
+ - Partial bug fix in initialization. SimGrid flags on command line were 
+   consumed at C level but stayed in the original Java String[] args. 
+   This could mess users' args[i] if SG flags were not put at the end of
+   the command line.
+   The SimGrid flags are now removed from the Java arguments. However, 
+   the number of arguments REMAINS UNCHANGED. It is then UNSAFE to test
+   if args.length is greater than the number of YOUR OWN ARGUMENTS. 
+   It might be if you have --log or --cfg flags in the command line.
+
+ S4U
+ - New callbacks:
+   - s4u::onPlatformCreated: right before the simulation starts
+   - s4u::onSimulationEnd: right after the main simulation loop
+   - s4u::onTimeAdvance: right after a clock change (time is discrete)
+   - s4u::Host::onSpeedChange: when the pstate is changed, or when an
+     event from the availability_file changes the avail speed.
+ - Links are now usable from s4u
+ - New: Engine::hostList() and Engine::hostCount(). Still clumsy.
+ - New: Actor::suspend(), Actor::resume(), and Actor::migrate(new_host)
+ - New examples: The conversion of MSG examples to S4U has begun
+    - Actors: create, kill, migration, and suspend
+    - Applications: master-worker and token-ring
+    - Action replay: communications and storage
+ - Drop Host::getPstateSpeedCurrent() which duplicates Host::speed()
+
+ SimDag
+ - Backwards Compatibility breaks
+    - The SD_route_get_list and SD_route_get_size functions have been removed. 
+      They are replaced by the unique 
+         void sg_host_route(sg_host_t src, sg_host_t dst, xbt_dynar_t links)
+      The route from src to dst is built in the links dynar whose size can 
+      be obtained with xbt_dynar_length.
+    - The SD_route_bandwidth and SD_route_latency functions have been replaced by
+        sg_host_route_bandwidth and sg_host_route_latency. 
+      Macros ensure the backwards compatibility, but you should fix your code
+
+ SMPI
+ - Major C++ rewrite ongoing (SMPI used to be C compiled in C++). This can break codes that were using internals of SMPI (from private.h instead of the public smpi.h).
+ - Bump our claim of support from MPI 1.1 to MPI 2.2. We don't support 100% of 
+   it, but it should be enough. Contact us if not.
+ - MPI_Win_lock/unlock support added (as for all RMA, implementation is naive and probably inaccurate)
+ - New algorithm for SMPI_SHARED_MALLOC: global, where all blocks are
+   mapped onto a unique file.
+ - Bugfix : smpirun was sometimes misusing hostfile when wrongly terminated
+ - Fortran : cleanups, fixes, support of user-added operations
+ - RMA : MPI_Accumulate are applied in correct order, and 
+   MPI_Win_complete or MPI_Win_post shouldn't miss messages anymore.
+ - Better support for MPI_IN_PLACE
+ - Support for MPI_Win attrs and keyvals.
+ - Support MPI_Comm_group_create, MPI_Type_size_x
+ - MPI ops should be properly applied to all allowed types
+ - Replace implementation of MPI_Bcast "scatter followed by rdb allgather"
+   algorithm by a non failing one from mpich.
+
+ XBT
+ - Kill the fifo data container: we don't use it anymore.
+
+ XML
+ - A <cluster> can now be created with different speed values to represent pstates.
+   see examples/platforms/energy_cluster.xml for an example.
+
+ -- target_date=March 20 2017 -- Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.14.159) stable; urgency=low
+
+ The previous release was only a crude approximation of a Pi release;
+ this one should be a bit better.
+
+ - Revert a last minute change that broke on Mac OSX.
+ - Fix the changelog and NEWS files.
+ - Improve the documentation, in particular of the routing module.
+ - Integrate some patches flying around in Debian.
+
+ -- Wed Dec 28 17:14:49 CET 2016 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.14) stable; urgency=low

 
  Documentation
  * The whole documentation was reworked and reorganized. There is
 
  Documentation
  * The whole documentation was reworked and reorganized. There is

-   still many room for improvement here, but we're on it.
+   still much room for improvement here, but we're on it.
+
+ Infrastructure
+ * We now need python3 for our testing infrastructure.
+ * Model checking needs libevent
+
+ MC
+ * Now works on FreeBSD

 
  SMPI
 
  SMPI

+ * Privatization now works on FreeBSD
+ 

  * Privatization is now activated by default in smpirun
    You can turn it off with -no-privatize if something goes wrong.
 
  * Privatization is now activated by default in smpirun
    You can turn it off with -no-privatize if something goes wrong.
 


@@ -19,23 +128,75 @@ SimGrid (3.14) UNRELEASED; urgency=low
    values were ignored in some cases. The timings of these functions can now
    be significantly different.
 
    values were ignored in some cases. The timings of these functions can now
    be significantly different.
 

- Dropped functions and features
+ * smpi/cpu-threshold:-1 should become smpi/simulate-computation:no
+   smpi/running-power    is renamed to smpi/host-speed
+
+ * smpi/grow-injected-times option to enable or disable multiplication of the 
+   timings injected in MPI_Iprobe, or MPI_Test. Enabled by default, which can 
+   make simulation less precise (but also much faster).
+
+ * smpirun script should be (much) faster for large deployments.
+
+ * SMPI tracing : fixed issue with poor matching of send/receives.
+
+ * Replay : Fix broken waitall
+
+ New functions and features
+ * MSG_parallel_task_execute_with_timeout, to timeout computations.
+
+ Dropped / renamed functions and features

  * msg_mailbox_t and associated functions. Use s4u::Mailbox instead.
    - MSG_mailbox_is_empty() -> Mailbox::empty()
    - MSG_mailbox_front() -> Mailbox::front()
    - MSG_mailbox_get_by_alias() -> simgrid::s4u::Mailbox::byName(name)
    - MSG_mailbox_get_task_ext() -> MSG_task_receive_ext()
    - MSG_mailbox_get_task_ext_bounded -> MSG_task_receive_ext_bounded
  * msg_mailbox_t and associated functions. Use s4u::Mailbox instead.
    - MSG_mailbox_is_empty() -> Mailbox::empty()
    - MSG_mailbox_front() -> Mailbox::front()
    - MSG_mailbox_get_by_alias() -> simgrid::s4u::Mailbox::byName(name)
    - MSG_mailbox_get_task_ext() -> MSG_task_receive_ext()
    - MSG_mailbox_get_task_ext_bounded -> MSG_task_receive_ext_bounded

+   - MSG_host_(get/set)_params -> MSG_vm_(get/set)_params
+ * Don't pass the free_f parameter to property related functions:
+   - MSG_host_set_property_value()
+   - MSG_as_router_set_property_value()
+   - MSG_storage_set_property_value()
+ * VM properties. Since msg_vm_t are msg_host_t, just use
+   MSG_host_get_property_value() and friends
+ * VM I/O related things:
+   - Ignored parameter of vm_create: core_nb, disk_path and disk_size.
+   - Unimplemented save/restore methods
+ * MSG_as_router_get_property_value() was redundent with
+   MSG_environment_as_get_property_value(). 
+   - Removed MSG_as_router_*propert*() functions
+   - Added MSG_environment_as_set_property_value() for consistency
+ * xbt heterogeneous dictionnaries (created with xbt_dict_new()). 
+   Well, they are still there for now, but deprecated with a warning. 
+   Please switch to xbt_dict_new_homogeneous() before this is removed
+   for real.

  * Task affinity. Its intended behavior (that was very badly tested
    and probably not really working) was deceiving what most users
  * Task affinity. Its intended behavior (that was very badly tested
    and probably not really working) was deceiving what most users

-   would have hoped here. 
+   would have hoped here.
+ * xbt_os_sem_get_value: unused internally, deprecated on OS X El Capitan
+ * Option network/coordinates is now useless and should be dropped.
+ 
+ Storage: 
+ * Added option storage/max_file_descriptors to allow more than 1024 files opened
+
+ SURF:
+ * Added option maxmin/concurrency_limit to allow more than 100 processes per host
+ * Added Dragonfly topology support

 
  XML:
  * Add Exa- and Peta- units such as EiB, EB, Eib, Eb for size, and
    EiBps, EBps, Eibps, Ebps for bandwidth. 
    They may become useful to some lucky ones.
 
  XML:
  * Add Exa- and Peta- units such as EiB, EB, Eib, Eb for size, and
    EiBps, EBps, Eibps, Ebps for bandwidth. 
    They may become useful to some lucky ones.

+   
+ Java:
+ * New functions: msg.Comm.waitAll() and msg.Comm.waitAny()
+ * ex/app_tokenring: new example, very similar to the MSG Token Ring
+ * ex/async_waitAll: new example, on asynchronous communications
+
+ MSG:
+ * Memory usage should be decreased for simulations with a large number 
+   of processes. This also helps for SMPI.

 
 

- -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+ -- Sat Dec 24 22:34:26 CET 2016 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>

 
 SimGrid (3.13) stable; urgency=low
 
 
 SimGrid (3.13) stable; urgency=low