In the event that these are moderately sparse matrices, you could try Matrix or SparseM.
Roger Koenker rkoen...@illinois.edu On Aug 14, 2013, at 10:40 AM, Praveen Surendran wrote: > Dear all, > > I am exploring ways to perform multiplication of a 90000 x 40000 matrix with > it's transpose. > As expected even a 40000 x 100 %*% 100x40000 didn't work on my desktop... > giving the error "Error: cannot allocate vector of length 1600000000" > > However I am trying to run this on one node (64GB RAM; 2.60 GHz processor) of > a high performance computing cluster. > Appreciate if anyone has any comments on whether it's advisable to perform a > matrix multiplication of this size using R and also on any better ways to > handle this task. > > Kind Regards, > > Praveen. > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.