SarahA
Joined: 29 Aug 2006
Posts: 16
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 Posted: Fri Apr 02, 2010 8:57 am Post subject: CUDA Fortran host device=device assignment |
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Just to clarify....A host program cannot copy device array to device array?
I will write a "copy kernel", but am I misunderstanding this part of the "CUDA Fortran Programming Guide & Reference", v.12 section 3.4.1 or is this a bug?
| Quote: | | An assignment statement with a device variable or device array or array section on both sides of the assignment statement will copy data between two device variables or arrays. |
pgfortran 10.3-0 64-bit target on x86-64 Linux -tp nehalem-64
| Code: |
:~ pgfortran -c foo.CUF
PGF90-S-0155-more than one device-resident object in assignment (foo.CUF: 5)
0 inform, 0 warnings, 1 severes, 0 fatal for test
:~ cat foo.CUF
program test
use cudafor
real, device, dimension(100) :: ha, wha
call foo(ha,wha)
ha = wha
call foo(ha,wha)
stop
end program
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