On Thu, Dec 12, 2013 at 9:36 PM, Dima Kogan <p...@dima.secretsauce.net> wrote: > devel.chm...@gmail.com writes: > >> On Tue, Dec 10, 2013 at 4:55 PM, Dima Kogan <p...@dima.secretsauce.net> >> wrote: >>> devel.chm...@gmail.com writes: >>> >>>> Any further status on this, Dima? >>>> >>>> <snip> > > Chris: > > OK. You are right. I am being too hard-line about this. I will look into > changing PDL::FFTW3 to work both ways. Can we also make a parallel > effort to align memory inside PDL itself?
My current plan was to address this following the PDL-2.008 release planned for Jan 2014. PDL-2.008 is a clean-up release to fix the remaining problem with 64bit index support where 64bit integers are cast into doubles causing a loss of precision---a big problem if the integer is a pointer value... That release would be a natural start point for what I've been calling the PDL3 work. As you may recall from last Summer, improved type support is a key component of the work to include true complex data support. This would be the natural time to address issues of memory allocation and alignment. > To evaluate the viability of my tree that does this, we need > > - some windows users to confirm that _aligned_free() must indeed be used > instead of free(), and that this is the only way to get a > memory-aligned malloc() > > - some test code for mmapped piddles. This should probably be added to > the test suite, if it's something we care about Sounds like a plan. The memory mapped pdls are one thing that requires working 64bit index support. For performance and functionality, I think having mmap work robustly will contribute to PDL3 capabilities. > I'll need a few days to find time to look at the PDL::FFTW3 > piece of this. Thank you. Decoupling PDL::FFTW3 from core PDL releases is key to PDL features and robustness going forwards. I am planning to take a look at the Alien::FFTW3 and other Alien::XXX in the coming month. As usual, it is the "as time permits" kind of progress. :-) --Chris > > dima > > _______________________________________________ > Perldl mailing list > Perldl@jach.hawaii.edu > http://mailman.jach.hawaii.edu/mailman/listinfo/perldl _______________________________________________ Perldl mailing list Perldl@jach.hawaii.edu http://mailman.jach.hawaii.edu/mailman/listinfo/perldl
