2005-02-04 Martin - Reenable GRAS/RL; keep GRAS/SG disabled for now - Various cleanups to the autotools stuff - Begin to move Gras examples to examples/gras/ - Let make distcheck work again (yeah!) 2005-01-31 Arnaud - Finished rewriting and debugging MSG. Rewrote the documentation. Preparing to release. 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 functionnal. 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' overthere 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 dictionnaries. 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. :) 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 mecanism 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 embeeded 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 (dupplicate code with chunk_{send,recv}; a bit out of the plugin mecanism), but it should work. - Simplify transport plugin (internal) interface by not passing any argument to _server and _client, but embeeding 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 mecanism] - 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 mecanism - 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.