SimGrid (2.95) unstable; urgency=low MSG * Implement MSG_get_msgload [MQ, AL] SURF * Bugfix: Allow absolute paths for platform description files [MQ] * Bugfix: do free the variables after use. Leads to drastic performance improvement [AL] GRAS (new features) * gras_datadesc_dynar() builds a dynar type descriptor, allowing to send dynar over the network (yeah) [MQ] * Real (even if simplistic) implementation of gras_os_myname() on RL [MQ] * simple/static token-ring example. [Alexandre Colucci and MQ] GRAS (bug fixes) * Differentiate the types "char[22]" and "unsigned char[22]" in automatic type parsing. "short" and "long" modifiers were also ignored; other modifier (such as reference level) are still ignored. [MQ] * Embeed the buffer size within the buffer itself on SG. [MQ] That way, send() are atomic and cannot get intermixed anymore (at least the ones which are less than 100k; bigger messages still have the issue) * Array size pushed by the field, not by the field type (or each and every long int will push stuff to the cbps) [MQ] GRAS (minor cleanups) * .Makefile.local (generated from gras_stub_generator) |MQ]: - Do clean .o files - Compile with -g * Callbacks now receive the gras_datadesc_type_t they work on as argument. * type category 'ignored' killed as it was never used and were difficult to transmit. * whether a type can cycle or not is now a flag, leaving room for more flags (as "ignored", if we feel the need one day ;) * Rename raw sockets to measurement sockets since "raw" has another meaning in networking community. -- SimGrid (2.94) unstable; urgency=low The first release candidate for SimGrid 3 ! >>>Arnaud<<< (documentation) * Update the main page and the FAQ. Adding references to gforge. (gras) * Add a gras_os_getpid function. (msg) * Add MSG_task_get_compute_duration() and MSG_task_get_data_size() * Extend the logs so that they also print PID, hostname, date, ... if available. * Convert the MSG example to the use of xbt_logs instead of PRINT_MESSAGE, and kill the old version which were in testsuite/ * Rewrite tools/MSG_visualization/colorize.pl for using with logs instead of PRINT_MESSAGE (xbt) * 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 you need on the simulator. >>>Martin<<< (infrastructure) * Cleanups in configury with regard to compile optimization/warning flags. Also add -fno-loop-optimize to any powerpc since it's the optimization killing gcc (< 3.4.0). * Doxygen cleanups: move MSG examples, kill the second Doxygen phase needed by MSG examples complications * Borrow configury beautifications from PHP (xbt) * Bugfix: XBT_LOG_NEW_DEFAULT_CATEGORY now compiles without compiler warning (thanks loris for stumbling into this one). * Bugfix: stop loading private headers (gras_config.h) from the public ones (xbt/swag.h). (gras) * Change SIMGRID_INSTALL_PATH to GRAS_ROOT in Makefiles generated for user. * 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 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) - move some private declaration to the right place - merge conditional execution and timing macros into emulation module - document the module - make sure the module cleanups its mess on gras_exit * Documentation improvements: - (new) how to compile applications using GRAS - (new) emulation support (timing macros) -- Da SimGrid team Fri, 13 May 2005 10:49:31 +0200 SimGrid (2.93) unstable; urgency=low Alpha 4 on the path to SimGrid 3 (aka the "neuf-trois" version) [Arnaud] - Use Paje properly where used. Still to be sanitized properly. - Portability fix: Add an implementation of the contexts using pthread [Martin] (misc) - Add xbt_procname(): returns the name of the current process. Use it to show the current process's name in all logging. (infrastructure) - fix detection of older flex version and the reaction, since we do depend on modern ones (we use lex_destroy) - Better separation of SG and RL in the libs: remove all simulation code from libgras. As a result, this lib is now only 200k when stripped. Some of the xbt modules may also be duplicated (two sets and such) and should be cleaned/killed before SG3. - Insist on using xlC on AIX because of weird problems involving gcc there. - Cleanup the make remote stuff. This is now done by scripts tools/graspe-{master,slave} (GRAS Platform Expender). This is still mainly for our private use, but we're working on changing them to user tools, too. (gras) - Bugfix: flush the socket on close only if there is some *output*. - Bugfix: flush idempotent when there's nothing to send (don't send size=0) (msg) - Add MSG_task_get_name. The task names are mainly for debugging purpose, but anyway. -- SimGrid team Fri, 4 Mar 2005 14:32:37 -0800 SimGrid (2.92) unstable; urgency=low Alpha 3 on the path to SimGrid 3 [Arnaud] (gras) - New! First try of benchmarking macros. - New! First try so that gras_stub_generator generate deployment and remote compilation helpers. (msg) - Bugfix: Initialization fix in msg_test. [Martin] (surf) - Bugfix: applied patch to lexer so that it doesn't need a huge heap. (xbt) - Bugfix: let dicts work with NULL content (_foreach didn't) and cleanups (gras) - API Change: gras_os_sleep to take the amount of seconds as a double. Accepting an int was error prone since it was the only location where seconds were coded as such. It leaded to damn rounding errors. - Bugfix: Hard to belive that timers ever worked before this. -- SimGrid team Wed, 23 Feb 2005 22:09:21 +0100 SimGrid (2.91) unstable; urgency=low Alpha 2 on the path to SimGrid 3 [Arnaud] (surf) - Bug fix in the lmm_solver. (msg) - New! Interface to Paje (see http://www-id.imag.fr/Logiciels/paje/) through the function MSG_paje_output. - New! Introducing two new functions MSG_process_kill() and MSG_process_killall(). - It is possible to bound the rate of a communication in MSG with MSG_task_put_bounded() (was already in the previous version but I had forgotten to write it in the changelog). - Bug fix to let GRAS run on top of MSG until we move it directly on top of the SURF. [Martin] (infrastructure) - Various cleanups to the autotools stuff - Begin to move Gras examples to examples/gras/ - Let make distcheck work again (yeah!) (documentation) - documentation overhauled using doxygen. gtk-doc-tools is dead in SimGrid now. - Automatically extract all existing logging categories, and add the list to the documentation (long standing one, to say the less) (gras) - Cleanup the known architecture table. Reorder the entries to group what should be, and use a more consistent naming scheme. (some of the test dataset are still to be regenerated) - New! Allow library to register globals on each process just as userdata does. This is implemented using a xbt_dict and not a xbt_set, so we loose the lookup time (for now). Use it in msg and trp. This cleans a lot the internals and helps enforcing privacy of the headers between the gras components. - New! Add a timer mechanism, not unlike cron(8) and at(1). - Bugfix: gras_os_time was delirious in RL. - Bugfix: gras_trp_select/RL don't run into the wall when asked to select onto 0 sockets. - Reenable GRAS now that it works. -- Arnaud Legrand Mon, 14 Feb 2005 14:02:13 -0800 SimGrid (2.90) unstable; urgency=low Alpha 1 on the path to SimGrid 3 * It is a long time since the last release of SimGrid. I'm sorry about that but as I had told you, I was rewriting a lot of things. I apologize to those who had been reporting bugs to me and that I had not answered. If your bug is still in the new version, please tell me. Here is a summary of the main changes. * REVOLUTION 1: The SimGrid project has merged with the GRAS project lead by Martin Quinson. As a consequence SimGrid gains a lot in portability, speed, and a lot more but you'll figure it out later. SimGrid now comprises 3 different projects : MSG, GRAS and SMPI. I wanted to release the new MSG as soon as possible and I have broken GRAS, which is the reason why, for now, only MSG is fully functional. A laconic description of these projects is available in the documentation. * REVOLUTION 2: I have removed SG and I am now using a new simulation kernel optimized for our needs (called SURF but only the developers should use it). Hence, MSG is now roughly 30 times faster and I think that by rewriting a little bit MSG, I could event speed it up a little bit more. Beside the gain in speed, it is also much easier to encode a new platform model with SURF than it was with SG. More to come... * REVOLUTION 3: I have tried to change a little as possible the API of MSG but a few things really had to disappear. The main differences with the previous version are : 1) no more m_links_t and the corresponding functions. Platforms are directly read from a XML description and cannot be hard-coded anymore. The same format is used for application deployment description. The new format is described in the documentation. Have a look in tools/platform_generation. There is a tiny script that converts from the old platform format to the new one. Concerning the application deployment format, parsing the old one is tricky. I think most of you should however be able to convert your files. If it is really an issue, I can write a C code that does the conversion. Let me know. 2) the toolbox tbx does not exist anymore. We now have a library with much more data-structures but without the hash-tables (we have dictionaries that are much faster). -- Arnaud Legrand Mon, 31 Jan 2005 10:45:53 -0800 ***************************************************************************** * Follows the old GRAS changelog. It does not follow the same syntax, but I * * don't feel like converting the oldies. (Mt) * ***************************************************************************** 2005-01-31 Arnaud Version 2.90: "the long awaited one" - Finished rewriting and debugging MSG. Rewrote the documentation. - disable GRAS for now since it needs to be ported to the newest SG 2004-12-16 Martin - Finish the port to windows (using mingw32 for cross-compile) 2004-11-28 Arnaud - Main loop and datastructures of SURF. A cpu resource object is functional. Surf can thus be used to create cpu's with variable performance on which you can execute some actions. 2004-11-15 Martin Quinson - Port to ARM. Simply added the alignment and size descriptions. Should work, but the ARM machines are so slow that I didn't had the opportunity to 'make check' over there yet. 2004-11-15 Arnaud Legrand - Trace manager now written. It uses a heap structure and is therefore expected to be efficient. It may however be speeded up (particularly when many events occur at the same date) by using red and black trees. One day maybe... - Max-min linear system solver written. It uses a sparse matrix structure taking advantage of its expected use. Most operations are O(1) and free/calloc are called as few as possible. The computation of the minimum could however be improved by using a red and black tree (again ! ;). 2004-11-03 Arnaud Legrand - Rename every gras_* function that was in xbt/ to its xbt_ counterpart. - Add a heap and a doubly-linked list to xbt - Added a dichotomy to the dictionaries. make check works as well before so I assume that the patch is correct. I do not know however if things run effectively faster than before now. :) Inclusion of the SimGrid tree in the GRAS one. The archive is renamed to SimGrid, and the version number is bumped to 2.x 2004-10-29 Martin Quinson - Introduction of the remote errors. They are the result of a RMI/RPC on the remote machine. ErrCodes being scalar values, you can't get the host on which those errors did happen. Extending the error mechanism as in Gnome is possible. No idea yet whether it is a good idea. 2004-10-28 Martin Quinson - Interface revolution: the Starred Structure Eradication. I used to do typedef struct {} toto_t; and then handle *toto_t. Arnaud (and Oli) didn't like it, and I surrendered. Now, you have: - ???_t is a valid type (builded with typedef) - s_toto_t is a structure (access to fields with .) - s_toto is a structure needing 'struct' keyword to be used - e_toto_t is an enum - toto_t is an 'object' (struct*) Exemple: typedef struct s_toto {} s_toto_t, *toto_t; typedef enum {} e_toto_t; Moreover, only toto_t (and e_toto_t) are public. The rest (mainly s_toto_t) is private. - While I was at it, all gras__free() functions want a gras__t* so that it can set the variable to NULL. It was so for dicts and sets, it changed for dynars. - Fix a bunch of memleaks in dict_remove - Fix a bug in sg/server_socket opening: it failed all the time. 2004-10-07 Martin Quinson - Speed up dynar lookup operation a bit. gras_dynar_get is dead. Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get but should be avoided for efficiency reasons) and gras_dynar_get_ptr (which gives you the address of the stored data). gras_dynar_get_as is an helpful macro which allows you to retrieve a copy of the data using an affectation to do the job and not a memcpy. int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to int toto = *(int*)gras_dynar_get_ptr(dyn,0); It does not really speedup the dynar test because they are setting elements all the time (and look them seldom). But the dict does far more lookup than setting. So, this brings the dict_crash test from ~33s to ~25s (200000 elms). 2004-10-05 Martin Quinson - Allow to (en/dis)able the cycle detection at run time. Whether we should check for cycle or not is now a property of each datatype. When you think there may be some cycle, use datadesc_cycle_set. datadesc_cycle_unset allow to remove this property when previously set. Note that the cycle detection is off by default since it impacts the performance. Watch the data you feed GRAS with ;) This property is hereditary. Any element embedded in a structure having it set have it set for the time of this data exchange. You should set it both on sender and receiver side. If you don't set it on sender side, it will enter an endless loop. If you forget on receiver side, the cycles won't be recreated after communication. - Header reorganization. Kill gras_private.h, each submodule must load the headers it needs. 2004-10-04 Martin Quinson - Interface revolution: do not try to survive to malloc failure. Now, gras_malloc and friends call gras_abort() on failure. As a conclusion, malloc_error is not a valid error anymore, and all functions for which it was the only gras_error_t return value are changed. They now return void, or there result directly. This simplify the API a lot. 2004-09-29 Martin Quinson - Re-enable raw sockets. Created by gras_socket_{client,server}_ext; Used with gras_raw_{send,recv} No select possible. It should allow to kill the last bits of gras first version soon. This is not completely satisfactory yet (duplicate code with chunk_{send,recv}; a bit out of the plugin mechanism), but it should work. - Simplify transport plugin (internal) interface by not passing any argument to _server and _client, but embedding them in the socket struct directly. 2004-09-28 Martin Quinson - Finish the port to AIX. autoconf was my problem (segfault within the malloc replacement function. No idea why) 2004-09-16 Martin Quinson - Fix some size_t madness on 64bit architectures. 2004-09-08 Martin Quinson - Reduce the number of system headers loaded, overload some more system calls (such as malloc to cast the result of the system one, and work properly on AIX) - Fix and reintroduce the config support 2004-09-07 Martin Quinson - Source code reorganization to allow Arnaud to surf all over there. - Allow to document the logging categories. - Remove all uppercase from logging categories and useless cleanup in names. 2004-08-18 Martin Quinson Version 0.6.2 (protocol not changed; API changed) - Interface cleanup: gras_msgtype_by_name returns the type (instead of a gras_error_t), and NULL when not found. Functions expecting a msgtype as argument (msg_wait; msg_send) deal with NULL argument by providing a hopefully usefull message. - Portability to prehistoric sparcs again 2004-08-17 Martin Quinson Version 0.6.1 (protocol not changed; ABI not changed) - prealloc some buffers to speed things up 2004-08-11 Martin Quinson Version 0.6 (protocol not changed; ABI expended) - The parsing macro can deal with the references, provided that you add the relevant annotations (using GRAS_ANNOTE(size,field_name)) 2004-08-09 Martin Quinson Version 0.5 (protocol not changed; ABI changed) - Allow to off turn the cycle detection code in data exchange at compilation time. It should be at run time, but I'm short of time (and the config stuff is still broken). That way, we keep dict out of the critical path, which is good because the performance is poor: - search not dichotomial yet - dynar give no way to access their content and memcpy everytime - In composed data description (struct, ref and so on), stop foolness of keeping the subtype's ID, but store the type itself. This keeps sets out of the critical path, which is good since they rely on dynar and dictionnaries. The only loose of that is that we cannot detect the redeclaration of a structure/union with another content (but I'm not sure the code detected well this error before anyway). We still can detect the redefinition discrepancy for the other types. - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since it breaks the code because of type-punning used all over the place). This breaks on all non-gcc architectures (for now). All those changes (plus the buffer of last time) allow me to gain 2 order of magnitude on cruel tests consisting of 800000 array of integers on two level of a hierarchical structure (200 secondes -> 4 secondes) API change: - the selector of reference must now return the type it points to, not the ID of this type. 2004-08-06 Martin Quinson Version 0.4 (protocol changed; ABI not changed) - Allow to pass --gras-log argument to processes in simulation mode. Really. - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT - Implement a buffer transport, and use it by default (it relies on tcp in real life and on sg in simulation). That's a bit hackish since I had a new field to the structure to store its data without interfering with the subtype ones. Inheritance is tricky in C. And that's a kind of reverse inheritance with one class derivating two classes. Or maybe a game with java interfaces. Anyway, that's damn hard in C (at least). Moreover, I got tired while trying to ensure plugin separation and genericity in SG mode. MSG wants me to do weird things, so let's go for cruel hacks (temporarily of course ;). See comment in transport_private.h:71 - do not include all the _interface headers in private but in the files which really need them (to cut the compilation time when they are modified) 2004-07-26 Martin Quinson Version 0.3 (protocol not changed; ABI changed) - Major overhault of the datadesc interface to simplify it: - shorted the function names: s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on - add a trivial way to push/pop integers into the cbps without malloc. This allows to make really generic sub_type description, which simply pop their size of the stack. - add a function gras_datadesc_ref_pop_arr() which does what users want most of the time: Declare a dynamic array (which pops its size of the stack) and declare a reference to it. Poor name, but anyway. - kill the post-send callback, add a post-receive one 2004-07-23 Martin Quinson Version 0.2 (protocol changed; ABI changed) - add some testing for cpbs in the test cases, and fix some more bugs. This invalidate again the little64 data file, since I cannot regenerate it myself. - remove an awfull optimization in the logging stuff, allowing me to: - understand it again - learn gcc how to check that the argument match the provided format - fix all errors revealed by gcc after that - internal keys of dict are not \0 terminated. Deal with it properly in loggings instead of segfaulting when the user want to see the logs :-/ 2004-07-22 Martin Quinson - Fix some stupid bug preventing cbps (callback postit) from working 2004-07-21 Martin Quinson - Some documentation cleanups - remove the useless last argument of msgtype_declare - rename the Virtu functions to fit into the 'os' namespace - move headers src/include -> src/include/gras/ and stop fooling with gras -> . symbolic link - make distcheck is now successful 2004-07-19 Martin Quinson Version 0.1.1 - Build shared library also - Install html doc to the right location - stop removing maintainer files in make clean - build tests only on make check 2004-07-13 Martin Quinson version 0.1 - No major issue in previous version => change versionning schema - Re-enable little64 convertion test now that Abdou kindly regenerated the corresponding dataset. 2004-07-11 Martin Quinson version 0.0.4 - Get it working with any kind of structure (we can compute the padding bytes remotely for all the architectures I have access to) - Implement the structure parsing macro (still not quite robust/complete) - Improvement to the remote testing toysuite 2004-07-10 Martin Quinson [autoconf mechanism] - get ride of a bunch of deprecated macros - actually run the test for two-compliment, not only compile it :-/ - test whether the structures get packed (and bail out if yes. Damn. Alignment is a serious matter) - test whether the structures get compacted (but respecting the alignment constraints of each types) - test whether the array fields of structures can straddle alignment boundaries [base] - Damnit, double are bigger than float (typo in creation of 'double' datadesc) (took me 2 hours to find that bug, looking at the wrong place) - Add gras_datadesc_declare_{union,struct}_close(). They must be used before sending/receiving and are used to compute the offsets of fields - Given that padding size depend even on compiler options, keep track of alignment and aligned_size only for the current architecture. Not a big deal since we send structure fields one after the other (seems reasonable). - Add the datastructure used for IEEE paper by the PBIO guys to the test program, let it work on linux/gcc/little32. portability todo. 2004-07-08 Martin Quinson - import and improve remote compilation support from FAST - make sure make check works on half a dozen of machines out there 2004-07-07 Martin Quinson Let's say it's version 0.0.3 ;) - Implement conversions (yuhu!) - Let it work on solaris (beside conversion, of course) - Stupid me, using rand() to generate the conversion datatests in not wise. 2004-07-06 Martin Quinson - Let make dist work, since I'm gonna need it to compile on remote hosts - Let Tests/datadesc_usage write the architecture on which the file was generated as first byte. - Add PowerPC (being also IRIX64), SPARC (also power4) and ALPHA architecture descriptions. - Add datadesc_usage.{i386,ppc,sparc} files being the result of execution on those architectures. - Optimization: send/recv array of scalar in one shoot 2004-07-05 Martin Quinson - YEAH! GRAS/SG and GRAS/RL are both able to run the ping example ! - Plug a whole bunch of memleaks - each process now have to call gras_{init,exit}. One day, their log settings will be separated - Continue the code factorisation between SG, RL and common in Transport. 2004-07-04 Martin Quinson [Transport] - Redistribution between SG and RL. We wanna have to accept in SG, so move accepted related parts of RL in the common part. (more precisely, the dynar of all known sockets is no more a static in transport.c, but part of the process_data) [Core/module.c] [gras_stub_generator] - Bug fix: Do call gras_process_init from gras_init (wasnt called in RL). 2004-07-03 Martin Quinson - Create a new log channel tbx containing dict, set, log, dynar (to shut them all up in one shot) [DataDesc] - Fix the ugly case of reference to dynamic array. - New (semi-public) function gras_datadesc_size to allow the messaging layer to malloc the needed space for the buffer. [Transport] - gras_socket_close now expect the socket to close (and not its address to put NULL in it after it). This is because the socket passed to handlers is one of their argument (=> not writable). [Messaging] - propagate the interface cleanup from last week in datadesc, ie remove a superfluous level of indirection. User pass adress of variable containing data (both when sending and receiving), and not of a variable being a pointer to the data. Let's say that I like it better ;) The price for that is constructs like "int msg=*(int*)payload" in handlers, but it's a fine price, IMHO. [examples/ping] - Let it work in RL (yuhu) 2004-06-21 Martin Quinson [Transport] - porting SG plugin and SG select to new standards (works almost). - plug memleaks and fix bugs around. [DataDesc] - cleanup the prototype of data recv and force users to specify when they want to handle references to objects. Test case working even for cycles. - plug memleaks. Valgrind is perfectly ok with this. 2004-06-12 Martin Quinson [Transport] - cleanup the separation between plugin and main code in plugin creation 2004-06-11 Martin Quinson [Transport] - Reput hook for raw sockets, needed for BW experiments - kill a few lines of dead code [Data description] Interface cleanup - gras_datadesc_by_name returns the searched type or NULL. That way, no variable is needed to use a type desc once, which makes the code clearer. - gras_datadesc_declare_[struct|union]_append_name is removed. The last two parameters were strings (field name, type name), leading to common errors. [Dicos] Interface cleanup - gras_dico_retrieve -> gras_dico_get ; gras_dico_insert -> gras_dico_set This is consistant with the dynar API. 2004-04-21 Martin Quinson [Messaging] - Porting to new standards. [Data description] - interface cleanup. There is no bag anymore, no need to take extra provision to mask the pointers behind "ID". Better splitup of functions between files create/exchange/convert. This is still a bit artificial since convert and receive are so interleaved, but anyway. [Virtu(process)] - add a queued message list to procdata (the ones not matching criteria in msg_wait) - factorize some more code between SG and RL wrt procdata [Tests] - use gras_exit in example to track memleaks - get rid of gs_example now that GS is properly integrated into gras - update run_test to integrate the lastest tests (datadesc) [Logging] - rename WARNINGn macros to WARNn since it prooved error-prone 2004-04-19 Martin Quinson [Data description] - register init/exit functions within gras module mechanism - send/receive function. Convertion is not implemented, but short-cutted if not needed. struct/array elements are sent one by one (instead of block-wise), but nobody really cares (yet). Get a prototype before optimizing. - tests (using a file socket) for DD send/receive on: - base types: int, float - array: fixed size, string (ie ref to dynamic string) - structure: homogeneous, heterogeneous - chained list, graph with cycle Believe it or not, valgrind is not too unhappy with the results. The cycle happily segfaults, but the others are ok. And I'm sick of pointers for now. [Transport] [File plugin] - Bugfix when using a filename explicitely (instead of '-') 2004-04-09 Martin Quinson [Transport plugins] - factorize more code between RL and SG in socket creation - Complete the implementation and tests of: o TCP o file (only in RL, and mainly for debugging) I lost 3 days to design a portable address resolver, and then decided that the prototype mainly have to run on my box. Addressing portability too early may be like optimizing too early :-/ [Tests] - use gras_init in the Tests instead of the crappy parse_log_opt (the latter function is removed) [Conditional execution] - New functions: gras_if_RL/gras_if_SG (basic support for this) [Code reorganisation] - Get rid of libgrasutils.a since it makes more trouble than it solves. Build examples against the RL library, since there is no way to disable its creation for now.