cudaMemcpy into part of an array?

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

I was wondering if it’s possible to do something like the following:

STATUS = cudaMemcpy(ArgVar2d(:,:,3),QSS,IM*JM* LM   )

where QSS, say, is shape (IM,JM,LM) and ArgVar2d is a device array of shape(IM*JM,LM,5).

I often reshape arrays via the cudaMemcpy interface when one is IM,JM,LM and the other is IM*JM,LM, but I’ve never tried to “insert” into the device array like this.

Matt

2

Answering my own question (with guidance from more knowledgeable people than I), the thing to do is think like the old days of F77:

STATUS = cudaMemcpy(ArgVar2d(1,1,3),QSS,IM*JM* LM   )

Assumed-size-like or C-like in thinking seems to work.