Alternatives to atomic instructions on C6678

Heinrich Schwarz

Other Parts Discussed in Thread: TMS320C6678

Hi,

I am evaluating several Algorithm-Categories on the C6678 (later +Hyperlink), starting with easy-to-parallelize course grained imaging algorithms up to problems which require more communication between cores that are hard to parallize.

For the imaging algorithms I think the tools provided by OpenMP3 will do fine - but for things like lockfree algorithms support for atomic instructions would be nice.
Does the C6678 support those, and if not, are hardware semaphores the only technique for multicore-programming?

Thx

over 13 years ago

0 Chad Courtney over 13 years ago

TI__Mastermind 30825 points

Heinrich,

There's a HW Semaphore block built in. You can find a UG for it on the TMS320C6678 product page in the User Guide section.

Best Regards,

Chad

0 Heinrich Schwarz over 13 years ago in reply to Chad Courtney

Intellectual 450 points

Hi Chad,

Thanks for your response.
I had hoped for something more fine-grained, to be able to implement things like lock-free algorithms, but the hardware semaphores are probably a good solution for coarse-grained parallelism often seen in Image or signal processing.

Thx

Processors

Processors forum

Alternatives to atomic instructions on C6678