PGI User Forum

Marco ABlanco26924 · Joined: 15 Sep 2009 Posts: 9

Thanks Mat. Using the "-ta=nvidia,oldcg" flag the code runs correctly. However, I stil have a problem. That piece of code is just a subroutine in a main code. When I copy that subroutine, with the same accelerator directives, it gives me another error:

"call ctxSynchronize returned error 700: Launch failed"

What does that error mean?

Thanks,
Marco

mkcolg · Posted: Thu Jan 14, 2010 2:28 pm Post subject:

Hi Marco,

It's a generic error so could be caused by a number of things. Typically though I've seen it when there was a seg fault copying the data to the device or a seg fault in the kernel.

- Mat

Marco ABlanco26924 · Joined: 15 Sep 2009 Posts: 9

Mat,
How it could happend if the seg runs perfectly with the acc directive when it is isolated, and it is the only seg in the code that uses an accelerator region.

Could you give me any hint to solve that issue?

Thanks,
Marco

mkcolg · Posted: Thu Jan 14, 2010 4:44 pm Post subject:

Array bounds violation? Feel free to send me the full source if you're able.

Marco ABlanco26924 · Joined: 15 Sep 2009 Posts: 9

Thanks Mat. I'd appreciate if you could help me with that, since I don't understand why it gives me that error if the subroutine runs perfectly when I copy it to a different project. I'll send both codes (the full code which gives me the error, and the code with just the subroutine) to the same email.

Thanks again,
Marco