Is there any method to specify data alignment requirements
for allocatable arrays? I need this to be able to call
FFTW routines when the FFTW library is compiled to use
SSE2 instructions. I believe there is a 32-byte alignment
requirement in this case. My code definitely crashes
when linked against an sse3 version of FFTW but is OK
with a non-sse2 version.
According to the man page the "-align" option can be used
to set alignment for common blocks, derived types and record structures. But no mention is made of allocatables.
Is this under control of the compiler, or of the underlying
system malloc?
I'll be grateful for any suggestions which don't involve butchering the code and replacing allocate statements with
something non-portable.
Keith Refson
