try catch can be expensive

[Guracar__Ismayil]

Hi 

When I run the DPC++ compatibility tool on CUDA code I see that every one of my kernel launches in the generated cpp code is bracketed by a try-catch construct.  It has been my experience that 'try' can be expensive in execution time (as well the experience of others, e.g. https://stackoverflow.com/questions/52312/what-is-the-real-overhead-of-try-catch-in-c).  Is there a way to disable or consolidate the try-catch so that it doesn't occur at each kernel launch but perhaps after a block of launches.  We might lose the ability to isolate errors to a particular launch, but that might be a reasonable tradeoff for performance in situations where large numbers of kernels must be launched.

Thanks

Ismayil

[AnubhavJ_intel]

Hi,

Thanks for reaching out to us. We will get back to you soon.

[Varsha_M_Intel]

Hi Ismayil,

After migration to DPCPP, the user is required to review, complete, test and fine tune and optimize(as you may see fit) the output of the tool.

-Varsha

[AbhishekD_Intel]

Hi,

As we haven't heard back from you, we are considering that your issue has been resolved.

We will no longer monitor this thread. If you require any additional assistance from Intel, please start a new thread.

Any further interaction in this thread will be considered community only.

Warm Regards,

Abhishek