Lawrence,
My understanding is that only a minor change is needed in ff's C++ layer in
order to remove the 64bit compiler warnings/errors.
The C++ layer is maintained by Daniel Adler, who can give you an outlook if/when
he plans to attack this.
Until a 64bit version of ff is available, you might consider using the 32bit win
version of R and ff on a 64bit win machine: while 32bit R itself has limited
memory access, ff can handle larger objects faster because it benefits from
*all* RAM via filesystem-caching.
Jens
---------------------
Von: "Hunsicker, Lawrence" <lawrence-hunsicker at uiowa.edu>
Gesendet: May 13, 2010 3:32:25 PM
An: Jens.Oehlschlaegel at truecluster.com
Betreff: ff for 64-bit windows and 64-bit R
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Jens:
I am running R on a 64 bit PC, 64 bit Windows 7, and 64 bit R. I have to handle
rather large data sets, and I need the 64 bit environment to run some of my
analyses. Use of ff has been recommended to me to help with some of the memory
problems, but I am told that ff has not yet been ported to a 64-bit Windows
environment. I have access, of course, to the native code, but I am not the
world?s best compiler operator. Do you have any plans to port ff to a 64-bit
Windows and R environment? Is there anything that I can do to encourage this?
I would be happy to make a contribution to the ?ff project? if such a thing
exists.
Let me know your plans.
[L. G. Hunsicker, M.D.]
Professor, Internal Medicine
U. Iowa College of Medicine
Phone: (319) 356-4763
Fax: (319) 356-7488
lawrence-hunsicker at uiowa.edu
