Do your matrices have any special properties we should know about? For example, are they sparse, symmetric, diagonal, etc?
-----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Praveen Surendran Sent: Wednesday, August 14, 2013 11:41 AM To: r-help@r-project.org Subject: [R] Matrix Multiplication using R. 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.
