Case study 12 



HPCC Community Resources 



nr 



xgams - (MIST Guide to Available Mathematical Software 



Guide to Available Math Software 



-;gams Is the X interface to NIST's Guide to (Available Mathematical 

 Softujare (GAMS). GAMS helps one to locate software for solving 

 mathematical and statistical problems. Information about more than 

 9200 computer software modules from some 60 packages available on 

 foui'^ vj xgams modules - search by problem 



Jla3 ... One-diniensioncil trigonometric (sine, cosine) 



fast Fourier transforms 



57 Modules 37 Selected 



SIMT 

 Package: TOMS 



649 

 Package: VFFTPK 



VC050B 



VCOSOF 



VCOST « 



VSIMOB 



V'SINQF 



VSINT 



detailsPopup 



Retrieve details lor VCCST In VFFTPK 



Type: ^ Source 



From: 



NETLIB 



Ok 



s^ Fullsource 



Cancel I 



Discrete Fourier cosine transform of multiple even sequences. 

 (Vectorized) . 



Classes: Jla3. One-dimensional trigonometric (sine, cosine) fast 

 Fourier transforms 



Type: Fortran subroutine in VFFTPK package. 

 Hccess: Public domain. Portable. 

 Precision: Single. 



Usage: 



CALL VCOST (M. N. X. XT. MDIMX. WShVE) 



i ; or package name 



Save] Filters] Help[ Done| 



■m 



Making effective use of high performance com- 

 puters requires considerable expertise in diverse 

 areas such as computer architecture, algorithms, 

 numerical analysis, and applied mathematics. 

 The need for insights in all of these arenas is a 

 serious stumbling block to a researcher whose 

 primary interest is in a particular physical appli- 



cation. An essential key to making high perfor- 

 mance computers generally usable in today's 

 fast-paced research environment lies in the 

 development and dissemination of reusable soft- 

 ware that encapsulates the expertise of computer 

 scientists and numerical analysts. 



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