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### [Scalapack] using subroutines scalapack

 ```Dear Mr/Ms, I am a dutch student and on this moment I'm following a traineeship at TNO. TNO has a cluster to compute parallel problems. One of my tasks is to find out which libraries can be used for parallel computing, for example solving a system of lineair equations. I have tried to use the subroutine PSGESV but it still doesn't work. The problem is that I don't know how exactly work the subroutines DESCINIT and PSGESV. Imagine, we have the system of lineair equations Ax=B with: 1 2 3 4 5 6 7 8 9 285 -1 2 3 4 5 6 7 8 9 283 1 -2 3 4 5 6 7 8 9 277 1 2 -3 4 5 6 7 8 9 267 A = 1 2 3 -4 5 6 7 8 9 B = 253 1 2 3 4 -5 6 7 8 9 235 1 2 3 4 5 -6 7 8 9 213 1 2 3 4 5 6 -7 8 9 187 1 2 3 4 5 6 7 -8 9 157 Processgrid: (1,4) Blocksize : (2,2) My question is: what are the values from the arguments from the subroutines DESCINIT and PSGESV (in Fortran 90)? On the Internet, I've seen many examples of PSGESV but I still don't understand how I can solve this system of lineair equations. I hope so much that you can help me further! Would you please help me? Kind regards, Peter Keereweer peter.keereweer@Domain.Removed This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html ```
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