Re: Inverse of Large Matrices
- To: mathgroup at smc.vnet.net
- Subject: [mg3457] Re: Inverse of Large Matrices
- From: rmj at leland.Stanford.EDU (Roger M. Jones)
- Date: Sat, 9 Mar 1996 00:58:31 -0500
- Organization: Stanford University, CA 94305, USA
- Sender: owner-wri-mathgroup at wolfram.com
>In inverting large (412 )matrices I have noticed a large >difference between memory usage in LinearSolve & >Inverse. Specifically I find for the below cases: >1: res1=LinearSolve[a,rhs]; >2: res2=Inverse[a].rhs; >(here a and rhs are 412 X 412 dimensioned matrices) >case 1 repeatedly applied consumes .7 MB more memory I have discovered the memory leak. It turns out that using LinearSolve[a,rhs], with rhs a matrix, rather than a vector, does produce the correct result however it leads to constant increase in memory usage. -- Regards, Roger Jones (rmj at leland.stanford.edu) ==== [MESSAGE SEPARATOR] ====