X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9facb650c295d80f11508863697708402b2e4d7c..a1e25c3df3ccc322ac4cf785d666b86777f9dac2:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 0df14dad50..73bddf23db 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,48 @@
-SimGrid (3.18) NOT RELEASED YET (target: December 24 2017)
+SimGrid (3.19) NOT RELEASED YET (target: March 20 2018, 16:15:27 UTC)
+
+ MSG
+ - Fix MSG_task_get_remaining_work_ratio() to return 1.0 for tasks that have
+   not started.
+
+ S4U
+ - Execution->setHost() can be called after start() to migrate it.
+ - Comm::test_any() is now implemented.
+ - s4u::Actor now has onCreation() and onDestruction() signals.
+
+ XBT
+ - Remove XBT_LOG_CONNECT, it should be useless nowadays.
+
+ SMPI
+ - The privatization of global variables via mmap() is now significantly more
+   flexible and allows the use of daemons with SMPI and to add new processes
+   while the simulation is running. (Adding new SMPI instances after the
+   simulation has already started should also be technically doable now.)
+ - Removed index notion from SMPI -- no more "getPid() - 1"!
+   This also means that the trace files
+   now contain actors called rank-<PROCESS-ID>. These are NOT the real
+   ranks, because tracing several communicators right now is not supported.
+ - Because of this, smpi_process_index() has now been deprecated and will
+   be removed in 3.21
+ Fixed bugs:
+ - #245: migrating an actor does not migrate its execution
+
+ TRACING
+ - Remove unused run-time parameter "tracing/onelink-only".
+
+SimGrid (3.18) Released December 24 2017
+
+ The "Ho Ho Ho! SimGrid 4 beta is coming to town" release.
+
+ MSG IS NOW DEPRECATED. Please use S4U for new projects.
+ - Support for MSG should not be removed from SimGrid before 2020,
+   but future evolutions will be limited to the integration of
+   user-provided patches.
 
  S4U New features
  - s4u::onDeadlock() signal, run before stopping the simulation.
  - s4u::Exec: asynchronous executions (abstraction of background
    threads)
+ - s4u::Host->getLoad() returns the achieved speed in flops/s
 
  S4U API changes
  - Link::name() is deprecated and will be removed in v3.21, use
@@ -12,7 +51,7 @@ SimGrid (3.18) NOT RELEASED YET (target: December 24 2017)
    Mailbox::getCname() instead to get a char*.
  - Storage::getName() changed to return a std::string, use
    Storage::getCname() instead to get a char*.
- - s4u::allStorages() becomes s4u::getStorageList(whereTo) 
+ - s4u::allStorages() becomes s4u::getStorageList(whereTo)
    to have both allocation and deallocation of the map in user space.
 
  MSG
@@ -22,11 +61,27 @@ SimGrid (3.18) NOT RELEASED YET (target: December 24 2017)
    name implies on both sequential and parallel tasks.
  - Both changes fix GitHub's #223 using PR #237 as a basis.
    Thanks Michael Mercier.
+ - Most examples were converted to S4U and hidden elsewhere at tests.
+   Rationale: we still want MSG to work; we want newcomers to use S4U.
 
  SURF
  - LMM stuff moved to its own namespace: simgrid::kernel::lmm.
  - Renamed LMM classes (e.g. s_lmm_system_t -> System).
 
+ SMPI
+ - Switch to the faster dlopen privatization mechanism by default
+ - Documentation improvments
+
+ Virtual Machines
+ - Live migration is getting moved to a plugin. Dirty page tracking is
+   the first part of this plugin. This imply that VM migration is now
+   only possible if one this function is called :
+    - C/MSG: MSG_vm_live_migration_plugin_init()
+    - C/C++: sg_vm_live_migration_plugin_init()
+    - Java:  Msg.liveMigrationInit()
+   For C and C++, "simgrid/plugins/live_migration.h" also has to be
+   included.
+
  XBT
  - Define class simgrid::xbt::Path to manage file names.
  - Removed unused functions:
@@ -59,11 +114,11 @@ SimGrid (3.18) NOT RELEASED YET (target: December 24 2017)
  - #248: Kill of finished processes leads to segfault
  - #240: xbt_cond_wait_timeout should gracefully return for C apps
  - #239: please implement signal s4u::onDeadlock()
- - #230: segfaults when exit() without run() 
+ - #230: segfaults when exit() without run()
  - #225: s4u::Actor::kill() doesn not really kill victims in a join()
  - #223: MSG_task_get_flops_amount() not working with parallel tasks
- - #222: Actor::kill() doesn't really kill and segfaults 
- - #221: odd LMM warning when killing an actor 
+ - #222: Actor::kill() doesn't really kill and segfaults
+ - #221: odd LMM warning when killing an actor
  - #120: Memory leak when the processes are forcefully killed
 
 SimGrid (3.17) Released October 8 2017