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youngsung
Joined: 15 Feb 2012
Posts: 2
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 Posted: Thu Mar 14, 2013 2:53 pm Post subject: WRITE in CUDA Fortran device code |
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Hi,
I am trying to convert a bunch of legacy Fortran codes to CUDA Fortran. One of difficulties on the conversion is to handle WRITE statements in legacy codes. CUDA Fortran 12.10, which I can use, only allow PRINT * or WRITE(*,*), but there are many cases that I have to support WRITE(unit#, format) var1, var2, ... I wonder that anyone has already encountered this situation and found a proper solution?
Thanks, |
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mkcolg
Joined: 30 Jun 2004
Posts: 4996
Location: The Portland Group Inc.
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| Posted: Thu Mar 14, 2013 4:56 pm Post subject: |
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I'm assuming that you're writing from within a kernel? No, there isn't yet the facilities to perform formatted I/O from the device nor attach to a specific unit.
Note that printing from a kernel will severely limit your performance.
- Mat |
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youngsung
Joined: 15 Feb 2012
Posts: 2
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| Posted: Thu Mar 14, 2013 7:50 pm Post subject: |
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| Actually, computation speed in kernel is not a matter in this case because it is a part of research regarding the micro-architecture of GPU and accuracy of computation. Thanks for the quick reply, though. |
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