Pole EXpansion and Selected Inversion (PEXSI)

Software · Sat Mar 01 00:00:00 EST 2014

OSTI ID:1231762

The Pole EXpansion and Selected Inversion method (PEXSI) is a fast method for evaluating certain selected elements of a matrix function. PEXSI is highly scalable on distributed memory parallel machines. For sparse matrices, the PEXSI method can be more efficient than the widely used diagonalization method for evaluating matrix functions, especially when a relatively large number of eigenpairs are needed to be computed in the diagonalization methond

• Short Name / Acronym: PEXSI; 003003MLTPL00
• Site Accession Number: 2014-072
• Version: 00
• Programming Language(s): Medium: X; OS: none; Compatibility: Multi-Platform
• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDepartment of Energy
• Contributing Organization: Lin Lin, Mathias Jacquelin, Chao Yang
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1231762
• Country of Origin: United States