PGI User Forum

Hi Mat,
Thanks a lot for your detail answer. I am still confused.

1. We use "a" and "n" in this saxpy kernel. So, when we remove them from data copy clause, how could GPUs can ...

Hello,

I have an error at runtime :

call to cuMemHostUnregister returned error 700: Launch failed

It is said that, this error comes in dereferencing an invalid device pointer or accessing out ...

Hello,
I have three questions:
1. present clause after copyin clause:

I have tried your OpenACC example from this article present clause in the callee function because in main function, we aread ...

Hello,

I wonder, is there any pragma or API which helps to initialize global variables to a particular value, for example, 0. I know acc_malloc and create(Yhelp us allocate global variables only. ...

Hello,

I use pgc++ 13.1 to compile OpenACC program. It is quite difficult for me to understand the parallel program deeply without a debugg tool. In CUDA, I could freely jump from one thread to ano ...