Software uses scientific subroutines for optimum performance.
Press Release Summary:
Tuned for optimum performance on POWER4(TM) and POWER4+(TM) processors, ESSL v4.1 offers support for AIX 5L v5.2 32-bit and 64-bit kernels. It provides optimum performance for floating-point engineering and scientific applications running on IBM Cluster 1600, IBM pSeries(TM) or RS/6000® servers, or SP(TM) systems. Additional offerings include thread-safe serial and SMP libraries, informative error-handling capabilities, and call interface callable from FORTRAN, C, and C++.
Original Press Release:
IBM Engineering and Scientific Subroutine Library V4.1 (ESSL) Offers New Scientific Subroutines for Optimum Performance
At a Glance
ESSL V4.1 is tuned for optimum performance on POWER4 and POWER4+ processors.
o AIX 5L V5.2 32-bit and 64-bit kernels support
o Thread-safe serial and SMP libraries
o Callable from FORTRAN, C, and C++
o 32-bit and 64-bit application support
o Easy-to-use call interface
o Informative error-handling capabilities
For ordering, contact:
Your IBM representative, an IBM Business Partner, or the Americas Call Centers at 800-IBM-CALL (Reference: RE001).
Overview
This new version of ESSL provides optimum performance for floating-point engineering and scientific applications running on an IBM Cluster 1600, IBM pSeries(TM) or RS/6000® servers, or SP(TM) systems.
The ESSL libraries have been tuned for optimum performance on the POWER4(TM) and POWER4+(TM) processors. ESSL now supports the AIX® 5L V5.2 32-bit and 64-bit kernels.
o The Dense Linear Algebraic Equation Subroutines now include these new LAPACK subroutines:
- SGESV, DGESV, CGESV, and ZGESV: General Matrix Factorization and Multiple Right-Hand Side Solve
- SPPSV and DPPSV: Positive Definite Real Symmetric Matrix Factorization and Multiple Right-Hand Side Solve
- SPOSV, DPOSV, CPOSV, and ZPOSV: Positive Definite Real Symmetric or Complex Hermitian Matrix Factorization and Multiple Right-Hand Side Solve
- SPPTRF and DPPTRF: Positive Definite Real Symmetric Matrix Factorization
- SPPTRS and DPPTRS: Positive Definite Real Symmetric Matrix Multiple Right-Hand Side Solve
- CGETRI and ZGETRI: General Matrix Inverse
- CPOTRI and ZPOTRI: Positive Definite Complex Hermitian Matrix Inverse
- CTRTRI, ZTRTRI, CTPTRI, and ZTPTRI: Triangular Matrix Inverse.
o SMP support has been added to the SCFT and DCFT subroutines when computing a single large transform.
o Manpages of the subroutine descriptions are now available.
Key Prerequisites
o IBM Cluster 1600, pSeries or RS/6000 servers, or SP systems
o AIX 5L V5.2 with 5200-01
o XL FORTRAN Run-Time Environment Version 8, or later
Planned Availability Date
July 25, 2003
Description
ESSL V4.1 contains identical calling sequences as prior versions of ESSL. The quick return condition for subroutine DBSSV has been changed. For all other subroutines, existing application programs will work without changes or recompilation.
All ESSL libraries provide high levels of performance for numerically intensive computing jobs on the respective processors. All versions provide mathematically equivalent results.
Refer to the Engineering and Scientific Subroutine Library for AIX 5L Guide and Reference for details. Hardcopy documentation is no longer being shipped with the product. It can be viewed or printed as detailed in the Publications section.
The ESSL software license agreement is now shipped, viewed, and accepted electronically.
Accessibility by People with Disabilities
o Operation by keyboard alone
Section 508 of the U.S. Rehabilitation Act
ESSL V4.1 is capable, as of July 25, 2003, when used in accordance with IBM's associated documentation, of satisfying the applicable requirements of Section 508 of the Rehabilitation Act, provided that any assistive technology used with the product properly interoperates with it.
Product Positioning
ESSL should be used where optimum performance is desired through simple subroutine calls from serial and SMP floating-point engineering and scientific applications running on Cluster 1600, pSeries or RS/6000 servers, or SP systems.
Reference Information
Refer to ESSL V3.3 Software Announcement 201-333, dated November 13, 2001.
Trademarks
The e-business logo, pSeries, SP, POWER4, and POWER4+ are trademarks of International Business Machines Corporation in the United States or other countries or both.
RS/6000 and AIX are registered trademarks of International Business Machines Corporation in the United States or other countries or both.
Other company, product, and service names may be trademarks or service marks of others.
