A simple multithreading question

[projectileman]

Hi.
I know that this is an stupid question....

Are global read-only variables supported in a multithread (multiprocessor) enviroment??

thanks for your time.

[Erwin Coumans]

It depends on which architecture.

On multi-core processors like Intel Core 2 Duo this it is fine to share constant globals without the need for synchronization.

On Playstation 3 SPU there are no shared global variables, only a 256kb (private) locale store memory. This means you have do transfer/DMA any data you need from shared main memory into the 256kb local storage memory.

Hope this helps,
Erwin