Intel® oneAPI Math Kernel Library
Ask questions and share information with other developers who use Intel® Math Kernel Library.
Announcements
Welcome to the Intel Community. If you get an answer you like, please mark it as an Accepted Solution to help others. Thank you!
6435 Discussions

## memory of MKL routines Beginner
95 Views

1 Does the pdposv routine, which solves a symmetric positive definite system of linear equations, allocate any other large memory except the matrix A and B?

2  To solves a symmetric positive definite system of linear equations, which routine needed addtional memory  is   the least ?  and how many about?

3 Replies Valued Contributor II
95 Views
>>...1 Does the pdposv routine, which solves a symmetric positive definite system of linear equations, allocate any other large memory >>except the matrix A and B?.. Simple tests could be done and, depending on a platform, some built-in functionality of an operating system could show you the difference. For example, use Task Manager on a Windows platform for verification how much memory is allocated: Test-case 1: Allocate memory for A and B matricies ( for example, 8192x8192 ) -> don't call pdposv -> verify amount of allocated memory ( M1 ) Test-case 2: Allocate memory for A and B matricies ( for example, 8192x8192 ) -> call pdposv -> verify amount of allocated memory ( M2 ) Calculate the difference M2 - M1. Beginner
95 Views

It's a good idea. Valued Contributor II
95 Views 