-SimGrid (3.13) UNRELEASED; urgency=low
+SimGrid (3.14) UNRELEASED; urgency=low
- The Easter Trim Release.
+ Documentation
+ * The whole documentation was reworked and reorganized. There is
+ still much room for improvement here, but we're on it.
- Backwards Compatibility breaks
- - Some command line options were renamed for consistency sake:
- - model-check/sparse-checkpoint -> model-check/sparse_checkpoint
- - smpi/async_small_thres -> smpi/async_small_thresh
- - smpi/send_is_detached_thres -> smpi/send_is_detached_thresh
+ Infrastructure
+ * We now need python3 for our testing infrastructure.
+ SMPI
+ * Privatization is now activated by default in smpirun
+ You can turn it off with -no-privatize if something goes wrong.
+
+ * Call-location tracing for SMPI.
+ You can add the exact location (filename / linenumber) of an MPI call to
+ your trace files and slow down or speed up the simulation between two
+ consecutive calls by using an adjustment file (see the documentation).
+
+ * Fixed computation of timings for MPI_Send, MPI_Recv & possibly also others
+ We've found a bug that prevented SMPI to account for MPI_Send, MPI_Recv
+ and others (in some cases) in a correct way. That is, the smpi/os, smpi/or
+ values were ignored in some cases. The timings of these functions can now
+ be significantly different.
+
+ * smpi/cpu-threshold:-1 should become smpi/simulate-computation:no
+ smpi/running-power is renamed to smpi/host-speed
+
+ 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_host_(get/set)_params -> MSG_vm_(get/set)_params
+
+ * Task affinity. Its intended behavior (that was very badly tested
+ and probably not really working) was deceiving what most users
+ would have hoped here.
+ * xbt_os_sem_get_value: unused internally, deprecated on OS X El Capitan
+
+ 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
+
+ -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+
+SimGrid (3.13) stable; urgency=low
+
+ The Half Release, a.k.a. the Zealous Easter Trim.
+
+ - We removed half of the lines, that were mostly experimental cruft.
+ v3.12 lasted 286000 lines of code, v3.13 is only 142000 lines
+ (not counting blanks and comments -- according to openhub.net)
+ - The internals are now compiled in C++ (and will soon be clean C++)
+ - We removed 75 klines of XML, 12 klines of Java, 5 klines of cmake,
+ 59 klines of C, etc. We added only 29 klines of C++ in replacement.
+
+ * Backwards Compatibility breaks
- Removed Lua simulation bindings (switch to C or Java for that).
Lua can still be used to describe platforms
- Removed Java kernel plug-ins.
- the following functions were removed.
They were too specific and should be reimplemented in a generic
way, with filter function.
- - MSG_task_listen_from_host
- - MSG_mailbox_get_count_host_waiting_tasks
- - MSG_mailbox_put_with_timeout was removed.
- Please use MSG_task_send_with_timeout instead.
+ - MSG_task_listen_from_host
+ - MSG_mailbox_get_count_host_waiting_tasks
+ - MSG_mailbox_put_with_timeout was removed.
+ Please use MSG_task_send_with_timeout instead.
- In SimDag
- - the SD_application_reinit function was removed. It was a noop for a while.
+ - the SD_application_reinit function was removed. It has been a noop for a while.
- The ACCESS_MODE of SD_workstation has been removed. This feature was not really usable and should soon be
replaced by a more flexible mechanism.
- The following functions thus do not exist anymore
- SD_route_get_communication_time => SG_route_get_latency() + amount / SD_route_get_bandwidth()
- SD_workstation_get_computation_time => amount / sg_host_speed()
- In Java
- - VM.setBound(int load) is now VM.setBound(double bound) to meet the MSG semantics. Use VM.getSpeed()*load/100 for the legacy behavior.
+ - VM.setBound(int load) is now VM.setBound(double bound) to meet the MSG semantics.
+ Use VM.getSpeed()*load/100 for the legacy behavior.
- In CMake
- - option enable_tracing was removed. It was not doing anything since a while.
+ - option enable_tracing was removed. It was not doing anything for a while.
- In the ModelChecker:
- the model-checker now ptraces the model-checked process which means
you cannot use a debugger on the latter anymore (we might make this
- keep the MC_cut() function as a stub (it was not really working
in the previous release).
+ Options:
+ * All options are consistently in kebab-case. Old names are kept as alias.
+
XML platforms:
* Switch to platform v4 format.
- Rename from 'power' to 'speed' the attributes describing the amount of
MSG_host_* and SD_workstation_* are #define to the sg_host_* ones
MSG
+ * The examples were completely reorganized (in C and Java), for your browsing pleasure.
* Kill all deprecated functions (the ones you had when declaring MSG_DEPRECATED).
They were deprecated since a few years, and probably did not even compile anymore.
include/simgrid/simdag.h
Simix
- * simgrid::simix::kernel() is the closure callback. It ensures that
+ * simgrid::simix::kernelImmediate() is the closure callback. It ensures that
the lambda or closure passed as a parameter will run in kernel mode.
- Every callbacks should be rewritten to that interface at some point.
-
+ All the callback functions should be rewritten to that interface at some point.
+
Surf
* Reorganizing and cleaning the internals all around the place.
They throw exceptions on invalid input;
* C++ support for declaring CLI flags (simgrid::config::Flag);
* class for abstracting different signal backends (simgrid::xbt::signal).
+ with no external dependencies (we need very simple signals).
MC
* refactoring and cleanup of the code;
* ongoing process to cleanly separate the model-checking algorithms
from the code model-checking support.
- -- $date Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
+ -- Wed Apr 27 21:00:53 CEST 2016 Da SimGrid team <simgrid-devel@lists.gforge.inria.fr>
SimGrid (3.12) stable; urgency=low
XBT:
* Logs:
- Add new runtime parameters --help-logs and --help-log-categories
- to display informations about supported logging parameters and
+ to display information about supported logging parameters and
categories.
- Old deprecated parameters --{gras,surf,msg,simix,xbt}-log=...
don't exists anymore.
SIMIX:
* New SIMIX network module. Provides:
- - Mailbox: rendez-vous mecanism to find with who you want to speak
+ - Mailbox: rendez-vous mechanism to find with who you want to speak
- Synchronous send/recv: easier and hopefully faster since the
logic is handled in the maestro process directly now
- Asynchronous send/recv: you dreamt of it? It's here now
(just like the main() function)
GRAS new features and improvements:
- * New module mecanism where user code can use per process globals [Mt]
+ * New module mechanism where user code can use per process globals [Mt]
This is similar to gras_userdata_*() functions, but for libraries. It
factorize some code developped over and over in the examples and AMOK.
It has still to be documented and used (only amok/peermanagement is
converted for now).
- * Fix a vicious bug in the TCP buffering mecanism which leaded to message
+ * Fix a vicious bug in the TCP buffering mechanism which leaded to message
loss when they were small enough to fit into the buffer and sent quickly
enough so that they can all get received in one shoot.
* gras_datadesc_by_name and gras_msgtype_by_name: now raise an exception
XBT:
* When running manually src/testall, you select specific units [Mt]
- testall is the result of our cunit mecanism, and should replace all
+ testall is the result of our cunit mechanism, and should replace all
the scripty thingy around since bash don't run easily on billware.
* A mallocator system has been added. [Christophe Thiery]
. Lesson 3: Passing arguments to the processes (in SG)
. Lesson 4: Attaching callbacks to messages
. Lesson 5: Using globals in processes
- . Lesson 6: Logging informations properly
+ . Lesson 6: Logging information properly
. Lesson 7: Using internal timers
. Lesson 8: Handling errors through exceptions
. Lesson 9: Exchanging simple data
is up or down. [AL]
GRAS:
- * New! a real RPC mecanism, as it ought to be since too long. [MQ]
+ * New! a real RPC mechanism, as it ought to be since too long. [MQ]
Exception occurring on server-side are propagated back to client (!).
API CHANGE: the callback changed their prototype. Change:
- Don't use it for receive since we send data sizes and data on the
same stream, so we wouldn't be able to chain large amount of chunks
before having to flush the stuff to read the size.
- * Rework the transport plugin mecanism to simplify it and reduce the
+ * Rework the transport plugin mechanism to simplify it and reduce the
amount of pointer dereferencement when searching for the right function
to use.
XBT:
* New! Exception handling with setjmp or such (code from OSSP ex) [MQ]
- This deprecates the xbt_error_t mecanisms.
+ This deprecates the xbt_error_t mechanisms.
It modifies (simplifies) all XBT and GRAS API.
MSG API keeps unchanged (exceptions raised by XBT are catched from
within MSG and masked with existing error handling facilities)
* Add xbt_os_time(). As the rest of xbt/portability, this is not public
for users. Instead, each programming environment (GRAS, MSG,...) use it
when needed to provide such a feature to users.
- Don't shortcut the mecanism or you will also shortcut the virtualization
+ Don't shortcut the mechanism or you will also shortcut the virtualization
you need on the simulator.
>>>Martin<<<
* Rename gras_get_my_fqdn to gras_os_myname and implement it in the simulator
RL would imply a DNS resolver, which is *hard* to do in a portable way
(and therefore delayed).
- * Implement a real timer mecanism and use it in timing macros. This allows
+ * Implement a real timer mechanism and use it in timing macros. This allows
to avoid rounding errors and get a 0.000005 sec precision in timing
macros. While I was at it, various cleanups:
- allow to declare more than one timed section per file (fix a stupid bug)
2004-07-13 Martin Quinson
version 0.1
- - No major issue in previous version => change versionning schema
+ - No major issue in previous version => change versioning schema
- Re-enable little64 convertion test now that Abdou kindly regenerated the
corresponding dataset.
