PGI User Forum

appleluo · Joined: 21 Nov 2012 Posts: 19

I tried to make an array private using the private clause but always got compilation error. Does the private clause work with arrays? The OpenACC standard doesn't say it only works for scalars.

Thank,

Ping

mkcolg · Posted: Fri Feb 22, 2013 2:51 pm Post subject:

No, it works with arrays. What's the error? What type are the arrays and how are your privatizing them?

- Mat

appleluo · Joined: 21 Nov 2012 Posts: 19

Mat,

The error message is very generic:
PGF90-S-0533- (tsolve_sweep_y.f90: 17)
0 inform, 0 warnings, 1 severes, 0 fatal for tsolve_sweep_y

line 17 is OpenACC directives look as follow:

!$acc kernels present(atp, ate, ats, atn, atw, bt, t) private(a, b)

a is a two dimensional array and b is a one dimensional array. Both are double precision.

The compiler I used is 12.8. My code cannot work with the newer compiler, a problem I haven't investigate yet.

Thanks,

Ping

mkcolg · Posted: Fri Feb 22, 2013 3:51 pm Post subject:

Hi Ping,

The "private" clause can only be applied to a "loop" or "parallel" directive. Note that the syntax error has been improved in the 2013 compilers.

appleluo · Joined: 21 Nov 2012 Posts: 19

Yes. You are right. But why the kernels doesn't allow private in the standard.

Ping