Is it possible to change things so that 64 bit sizes can be passed in the two places you identified and see if that works?
I appreciate that things could still fall over in various PP autogenerated code pieces if ints are used for offset calculations in slice and other vaffine operations. Christian On 4/08/2010, at 12:46 PM, Chris Marshall wrote: > I took a further look at the SvGROW calls in > PDL/Basic/Core routines and the two that I found > both use int type for their sizes. That would > limit a piddle size to <2**31 or about 2GB. > > It looks like 64bit support for PDL may need > to be added to the list for the future. I don't > know the scope of the changes that would be > required to support larger PDL data objects. > > --Chris > > On 8/3/2010 8:39 PM, Chris Marshall wrote: >> On 8/3/2010 8:30 PM, P Kishor wrote: >>> On Tue, Aug 3, 2010 at 7:19 PM, Chris Marshall<[email protected]> wrote: >>>> On 8/3/2010 8:01 PM, P Kishor wrote: >>>>> >>>>> also on 64-bit Snow Leopard (Mac OS X 10.6.4) >>>>> >>>>> punk...@lucknow ~$ perl -MPDL -e '$PDL::BIGPDL=1; $x = sequence(float, >>>>> 23171, 23171); print $x->info("%M")."\n"' >>>>> perl(85899) malloc: *** mmap(size=18446744071562166272) failed (error >>>>> code=12) >>>>> *** error: can't allocate region >>>>> *** set a breakpoint in malloc_error_break to debug >>>>> Out of memory! >>>>> punk...@lucknow ~$ >>>> >>>> What is perl -V? >> >> I looked at the PDL/Basic/Core stuff and it looks like >> if SvGROW can handle a>2GB string then, in principle, >> PDL should be able to handle piddles of that size. >> >> Could you see if you can create a string more than 2GB >> long? It might take a while but it will tell us if the >> limit is perl or PDL. Since the PDL routines for growing >> a new piddle use 4byte ints for their sizes (rather than >> size_t objects), it is pretty clear that there is a bug >> in the PDL allocation stuff if perl can handle the longer >> strings. >> >> --Chris > > _______________________________________________ > Perldl mailing list > [email protected] > http://mailman.jach.hawaii.edu/mailman/listinfo/perldl _______________________________________________ Perldl mailing list [email protected] http://mailman.jach.hawaii.edu/mailman/listinfo/perldl
