async clause for acc region

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

Hi,

I am trying to use the async clause for data region, but I haven’t been able to compile so far. Here is a test program:

program test
  integer :: i,j
  integer(4) :: iacc
  real :: a(100,60)
  !$acc local(a)

DO j=1,60
!$acc region async
  DO i=1,100
     a(i,j)=1+i**2+j**2
  END DO
!$acc end region
END DO


!$acc wait
!$acc update host(a)

print*, sum(a)

end program test

I though this should be valid according to the v1.3 documentation but I am getting the following error when I compile:

PGF90-S-0034-Syntax error at or near identifier async (test.f90: 8)
PGF90-S-0034-Syntax error at or near end of line (test.f90: 16)

Thanks for your help,

Xavier

PS : I am using pgi 11.3

2

Hi Xavier,

PGI release 11.3 supports the 1.2 PGI Accelerator Model specification. async is part of in the 1.3 specification whose implementation is in development.

Sorry for the confusion.

Mat

3

Just a quick question: When will 11.4 be out? Thank you!

4

Hi,
I also want to try the async clause, but get an error message. I use the PGI Compiler 11.7 at the moment. In which compiler version should the async clause be supported?
Bye,
Sandra

5

Hi Sandra,

async should be available in the first release of the PGI 2012 compilers (12.1).

  • Mat