As a result, the thread that holds the mutex can safely load arena_data.arena_count (while holding the mutex, of course) and it can be sure that its value does not change until it unlocks the mutex. Open Arena Project Reload is a project designed to update Open Arena by replaceing old game assets and models with new ones and makeing avaliable the source. Estadio Municipal 'El Arcángel' Ala Este 5ª planta Tel. In order to fix that, the following guarantee might be helpful: Any store to arena_data.arena_count happens while holding the new_arena_mutex. TARIFAS CDM OPEN ARENA TARIFAS CDM TERESA ALCANTARA TARIFAS PISCINA SANTUARIO C/ José Ramón García Fernández s/n 14010 Córdoba - España.
The modified version in your answer does not fix the problem. The load from arena_data.arena_count happens atomically, but threads may not generally assume that the value is (still) correct. Also make sure you have active grid object paging enabled. Currently, there are several proprietary and open I. Overall, to improve performance, try reducing shadow and water reflection settings. An Experimental Study on Memory Allocators in Multicore and Multithreaded. The compilation option is not relevant on Windows, unless you decide to build OpenMW manually. So I am suspecting that one thread might be reading the value of arena_count just before an other thread is incrementing it, and by the time it finishes reading it, the thread that incremented it releases the new_arena_mutex and the first thread goes in creating an arena with a wrong index. Increasing it to two might improve your FPS a bit, but most likely not by much. This is the race condition you describe in your question:
OPEN ARENA MULTITHREADING CODE
That way, the data processing can be tested as singly threaded code, and the only thing the multithreaded code does is to coordinate threads. while those marked with open circles are connected to the sink. The first thing to do is to separate your production thread handling code from all the code that does actual data processing. Race condition when two threads create arenas Keywords: Cray XMT-2, maxflow, image segmentation, multithreading, massively parallel. Multithreaded processors may broadly be classified into two. THREAD 0x7f9c3b216700 READS ARENA COUNT AT 5 Multithreaded computer applications are particularly efficient in the multi-media arena. Here is one of the printf statements, and one that comforts my theory that there is a race condition: THREAD 0x7f9c3b216700 READS ARENA COUNT AT 4 Return user_area((t_alloc_chunk *)current_pool->chunk, size, &arena_) My data structure are as follow: typedef struct s_arena I'm implementing my own version of malloc, which is very similar to the glibc malloc, as in it supports multithreading by creating arenas, which is a memory area that a thread can work on without the risk of competing with another thread.
0 kommentar(er)
