Hi Ian,
compiling on your 32bit machine gave you a 32bit binary, so your 12GB
RAM cannot be used!
HTH,
Kay
Am 20:59, schrieb Ian Tickle:
> Hello all, some Fortran developer out there must know the answer to
> this one. I'm getting a "forrtl: severe (41): insufficient virtual
> memory" error when allocating dynamic memory from a F95 program
> compiled with Intel Fortran v11.1.059. The program was compiled on an
> old ia-32 Linux box with 1Gb RAM + 2Gb swap (I only have one Intel
> license to compile on this machine), but I'm running it on a brand new
> x86-64 box with 12Gb RAM + 8Gb swap. This should be ample: the
> program's maximum total memory requirement (code + static data +
> dynamic data) should be no more than 3Gb.
>
> My question is: what do I have to do to make it work? According to
> the ifort man page I need to specify "-mcmodel=medium -shared-intel".
>
> It says: "If your program has COMMON blocks and local data with a
> total size smaller than 2GB -mcmodel=small is sufficient. COMMONs
> larger than 2GB require mcmodel=medium or -mcmodel=large. Allocation
> of memory larger than 2GB can be done with any setting of -mcmodel."
>
> I'm a bit confused about the difference here between COMMONS> 2Gb
> (which I don't have) and "allocation of memory"> 2Gb (which I assume
> I do).
>
> When I try setting -mcmodel=medium (and -shared-intel) I get "ifort:
> command line warning #10148: option '-mcmodel' not supported". Is
> this telling me that I have to compile on the 64-bit machine?
> Whatever happened to cross-compilation?
>
> All suggestions greatly appreciated!
>
> -- Ian
--
Kay Diederichs http://strucbio.biologie.uni-konstanz.de
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