Top "Shared-memory" questions

Memory that may be simultaneously accessed by multiple programs

What's the difference between CUDA shared and global memory?

I’m getting confused about how to use shared and global memory in CUDA, especially with respect to the following: …

memory cuda global shared-memory
MPI vs openMP for a shared memory

Lets say there is a computer with 4 CPUs each having 2 cores, so totally 8 cores. With my limited understanding I think …

mpi openmp shared-memory
Posix shared memory vs mapped files

Having learnt a bit about the subject, can anyone tell, what is the real difference between POSIX shared memory (shm_…

posix shared-memory memory-mapped-files
can I over run the tmpfs size

I'm trying to use /dev/shm tmpfs for writing my files. The default is half of the physical RAM without …

linux shared-memory
APC Cache use only 32M memory

Here my config extension = apc.so apc.enabled = 1 apc.shm_size = 128M apc.shm_segments = 1 apc.gc_ttl = 7200 apc.ttl = 0 …

php shared-memory apc
Process VS thread : can two processes share the same shared memory ? can two threads ?

After thinking about the the whole concept of shared memory , a question came up: can two processes share the same …

multithreading process operating-system shared-memory
What is the point of having a key_t if what will be the key to access shared memory is the return value of shmget()?

When using shared memory, why should we care about creating a key key_t ftok(const char *path, int id); …

c unix shared-memory ftok
Do pthread mutexes work across threads if in shared memory?

I found this: Fast interprocess synchronization method I used to believe that a pthread mutex can only be shared between …

c++ process mutex shared-memory pthreads
/tmp vs. /dev/shm for temp file storage on Linux?

I have scripts that make hundreds of quick succession, small, temp files needing to be created and very soon read …

linux shared-memory temporary-files
What special powers does ashmem have?

Can someone explain why ashmem was created? I'm browsing through mm/ashmem.c right now. As near as I can …

android linux shared-memory