Essl/Pessl Optimized For Power 775 Clusters - IBM Power Systems 775 Manual

2.3.4 ESSL/PESSL optimized for Power 775 clusters

This section describes ESSL and Parallel ESSL optimized for IBM Power System 775
clusters.
ESSL
The ESSL 5.1 Serial Library and the ESSL SMP Library contain the following subroutines:
A VSX (SIMD) version of selected subroutines for use on POWER7 processor-based
servers
An AltiVec (SIMD) version of selected subroutines for use on POWER6 processor-based
servers
This release of ESSL provides the following changes:
Operating systems:
Support is added for the following operating system version:
– AIX 7.1
Support is no longer provided for the following operating systems:
– SUSE Linux Enterprise Server 10 for POWER (SLES10)
– Red Hat Enterprise Linux 5 (RHEL5)
Servers and processors:
– Support is added for the IBM POWER7 processor.
– Support is no longer provided for the following servers and processors:
• IBM BladeCenter JS2
• IBM POWERPC 450
• IBM POWERPC 450D
• IBM POWER5
• IBM POWER5+
• IBM POWERPC970 processors
• IBM Blue Gene/P
Subroutines
ESSL 5.1 is the last release to support non-LAPACK-conforming subroutines; that is,
those ESSL subroutines whose name is the same as an existing LAPACK subroutine, but
whose calling-sequence arguments and functionality are different from that LAPACK
subroutine.
The new LAPACK subroutine includes the following value:
– DSYGVX (Selected Eigenvalues and, optionally, the Eigenvectors of a Positive Definite
Real Symmetric Generalized Eigenproblem)
The following new Fourier Transform subroutines are now included:
– SRCFTD and DRCFTD (Multidimensional Real-to-Complex Fourier Transform)
– SCRFTD and DCRFTD (Multidimensional Complex-to-Real Fourier Transform)
– Fastest Fourier Transform in the West (FFTW) Wrappers
Support is added to the ESSL FFTW Wrapper Libraries corresponding to the new ESSL
Fourier Transform subroutines.
For more information about FFTW Version 3.1.2, see this website:
http://www.fftw.org
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IBM Power Systems 775 for AIX and Linux HPC Solution