Error when pass PINNDED data

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

I’m using VisIt tool from LLNL. When I call the Fortran wrapper API, it works if I used regular ALLOCATABLE data to pass to the wrapper. However, if I use ALLOCATABLE PINNED data, i get runtime error.

I guess there may be some difference in the metadata for the two data. What may cause this error?

Thanks,
Tuan

2

Hi Tuan,

I’m not sure what would cause this. Pinned memory, although located in host’s physical memory, is managed by the CUDA device driver. Though, I would think this would be fine.

Can you send me an example with reproduces the problem?

Thanks,
Mat