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Subject: Re: OpenACC-Library-Interoperability
To: Vikram Singh <vikramsingh001@gmail.com>, Thomas Schwinge	<thomas@codesourcery.com>
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CC: Salvatore Filippone <filippone.salvatore@gmail.com>,	=?UTF-8?Q?Vladim=c3=adr_Fuka?= <vladimir.fuka@gmail.com>, James Norris	<jnorris@codesourcery.com>, Chung-Lin Tang <cltang@codesourcery.com>, Fortran List <fortran@gcc.gnu.org>
From: Cesar Philippidis <cesar_philippidis@mentor.com>
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Date: Mon, 29 Aug 2016 14:34:00 -0000
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On 08/29/2016 06:58 AM, Vikram Singh wrote:

> It seems to me the data type is not being correctly translated to what
> DGEMM requires.

Correct. Arrays in gfortran have different representations from those in
c. See
<https://gcc.gnu.org/onlinedocs/gfortran/Interoperability-with-C.html>
for instructions on how to call c functions from gfortran. I recently
posted a libgomp host_data test case which calls cublas here
<https://gcc.gnu.org/ml/gcc-patches/2016-08/msg00976.html>.

Cesar