[molpro-user] gmainv (again)

[Manhui Wang]

I can't reproduce the problem on all the 64-bit platforms I have
accessed. On all those 64-bit platforms, molpro can use more than 4G
memory. Only when I specified more than 3G memory on 32-bit platforms,
the error mentioned happened. But this is obviously due to the
32-bit OS/machine limitation.

After discussion with Pedro, he went to see the output of the
person who got this error. The user mixed up the words and byte, and for
the FCI that was trying to do, he required  more than 3221455474
words (24577 Mbyte). Of course it is out of the physical limit of the
machine.

Normally, gmainv works fine to allocate more than 4G memory on 64-bit
machines.

Pedro Jorge Caridade wrote:
> Dear Molpro users
> 
> I have a Opteron machine with two-quad core processors and 8 Gb of
> physical RAM. gmainv is giving an error, and by trail-and-error, I found
> that can only allocate around 3.1Gb of ram. Everything is compiled with
> long integers with intel ICC and IFORT compilers. I tried also to use
> different shmax values and nothing happened. After digging a little bit
> I have use a memory allocator called memtester to check the value of the
> memalloc C function. On my system I asked for 7701MB and get such number.
> 
> I have seen a similar problem in march 2008 but no solution has been
> found (I think!). Does anyone have any clue for this?
> 
> Regards
> Pedro
> 

-- 
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Manhui  Wang
School of Chemistry, Cardiff University,
Main Building, Park Place,
Cardiff CF10 3AT, UK
Telephone: +44 (0)29208 76637