Dear all,
I am trying to multiply three different matrices and each matrice is of size
16384,16384 the normal %*% multiplciation operator has not finished one day
now. As I am running a system with many cores (and it seems that R is using
only one of those) I would like to write fast a brief function that converts
the typical for loops of a matrix multiplication to a set of lapply sets
(mclapply uses the lapply syntax but it applies the work to many cores).
If my thinking is correct , in the sense that this will speed up things a lot,
I want you to help me covert the first matrix in rows the second in columns and
convert those in a format that lapply would like to work with.
I would like to thank you in advance for your help
Regards
Alex
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