Big (I mean big) arrays in gfortran???
 

I'm running the gfortran (f95) that came in my FC7 (32 bit) distro & the biggest 2-dimensional array seems to be about 16000 x 16000 (single precision complex). I have plenty of memory (8 GB), so I don't think it's a size limitation on linking. It seems to be inherent to the gfortran, at least for the 32 bit distro. Do I have to go to the 64 bit distro in order to handle bigger arrays?

-- EZRIDER

You cannot address 8GB with a 32-bit address, unless you have software to emulate the missing bits and an OS which uses 64-bit internally - or a cpu which has 32-bit addresses + page switching. So ... try the 64-bit version. The 16000x16000 single complex is just under 2GB.

OK on 64 bit...
 

Thanks for the reply. I forgot to say I'm using the FC7 PAE kernel now, but I'm sure that doesn't help if the gfortran only uses 32 bit addressing. Is there a 64 bit gfortran available to go with the 64 bit Fedora?

-- EZRIDER