PGI User Forum
 SearchSearch   MemberlistMemberlist     RegisterRegister   ProfileProfile    Log inLog in 

CUDA-x86.

call to cuMemHostUnregister returned error 700

 
Post new topic   Reply to topic    PGI User Forum Forum Index -> Accelerator Programming
View previous topic :: View next topic  
Author Message
Minh



Joined: 01 Mar 2013
Posts: 9

PostPosted: Wed Jun 05, 2013 7:49 pm    Post subject: call to cuMemHostUnregister returned error 700 Reply with quote

Hello,

I have an error at runtime :

Quote:
call to cuMemHostUnregister returned error 700: Launch failed


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

Do you have any suggestion to investigate the program further?

Thank you ,
Regards,
Minh
Back to top
View user's profile
mkcolg



Joined: 30 Jun 2004
Posts: 6134
Location: The Portland Group Inc.

PostPosted: Thu Jun 06, 2013 1:27 pm    Post subject: Reply with quote

Is this OpenACC? If yes, then look at the variables in your copy clauses. Are the correct bounds being used?

Quote:
Do you have any suggestion to investigate the program further?
Set the environment variable "PGI_ACC_DEBUG=1". You will be flooded with information but it will show you the variable that's causing the error.

- Mat
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic    PGI User Forum Forum Index -> Accelerator Programming All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © phpBB Group