PGI User Forum

[jmckennon]

Hi,

I'm working on a CUDAFORTRAN project and am trying to get my kernel routine to run. I'm very new at this so I'm not sure if I did everything right. My main routine compiles all the way until I call the device kernel. When it hits that, I get an error

PGF90-S-0446 rank mismatch

error for each and every argument of the device kernel. Why is this? The relevant code is below (or what I'm assuming to be relevant for this).

[brentl]

Two things: 1) I'd probably need to see how you declared the arrays in the rieman_kernel global subroutine. Or how you declared them in the interface block if you are using interface blocks. All interfaces between the host and the device routines must be explicit.

2) I think using the size of the array as the argument to allocate the array is an error. If it is unallocated, it has no size. These are okay:

allocate(gameDev(numCells))

but this I think is not going to work:

allocate(pstor(size(pstor)))

[jmckennon]

thanks for the reply!

below is my relevant code

[jmckennon]

I tried making code simpler, so that I can get an easy piece to work and then go from there but I am having no luck.

I only want to get it to work with what's here then go from there.

The entire code now says (the majority of the lines are just declaration statements that I intend to use later if I ever get this to work).

[mkcolg]

Hi jmckennon,

I think you just missing the declaration of "prght" in your "rieman_kernel" kernel. Otherwise "prght" is implicitly declared as a real giving the rank mismatch.