From WILOBE@IBM-SJ.ARPA Fri Feb 28 00:39:22 1986 Received: from IBM-SJ.ARPA (ibm-sj.arpa.ARPA) by anl-mcs.ARPA (4.12/4.9) id AA01674; Fri, 28 Feb 86 00:39:09 cst Date: Fri, 28 Feb 86 00:38:39 cst From: WILOBE@IBM-SJ.ARPA Message-Id: <8602280639.AA01674@anl-mcs.ARPA> Apparently-To: Status: RO Below is a listing of the input/output files which are accessed by the real symmetric Lanczos eigenvector program, LEVEC. Included also is a sample of the input file which LEVEC requires on file 5. The parameters are supplied in free format. LEVEC computes eigenvectors for each of a user-specified subset of the eigenvalues computed by the companion program LEVAL. SAMPLE DEFINITIONS OF THE INPUT/OUTPUT FILES FOR LEVEC ------------------------------------------------------------------ *LEVEC EXEC TO RUN LANCZOS EIGENVECTOR PROGRAM, REAL SYMMETRIC MATRICES FI 06 TERM FILEDEF 2 DISK &1 HISTORY A (RECFM F LRECL 80 BLOCK 80 FILEDEF 3 DISK &1 GOODEV A (RECFM F LRECL 80 BLOCK 80 FILEDEF 4 DISK &1 ERRINV A (RECFM F LRECL 80 BLOCK 80 FILEDEF 5 DISK LEVEC INPUT A (RECFM F LRECL 80 BLOCK 80 FILEDEF 8 DISK &1 INPUT A (RECFM F LRECL 80 BLOCK 80 FILEDEF 9 DISK &1 ERREST A (RECFM F LRECL 80 BLOCK 80 FILEDEF 10 DISK &1 BOUNDS A (RECFM F LRECL 80 BLOCK 80 FILEDEF 11 DISK &1 TEIGVECS A (RECFM F LRECL 80 BLOCK 80 FILEDEF 12 DISK &1 RITZVECS A (RECFM F LRECL 80 BLOCK 80 FILEDEF 13 DISK &1 PAIGE A (RECFM F LRECL 80 BLOCK 80 LOAD LEVEC LESUB LEMULT ------------------------------------------------------------------- SAMPLE INPUT FILE FOR LEVEC ------------------------------------------------------------------- LEVEC REAL SYMMETRIC EIGENVECTOR COMPUTATIONS, NO REORTHOGONALIZATION LINE 1 MDIMTV MDIMRV MBETA(MAX.DIMENSIONS, TVEC, RITVEC AND BETA 10000 10000 2000 LINE 2 RELTOL .0000000001 LINE 3 MBOUND NTVCON SVTVEC IREAD (FLAGS 0 1 0 1 LINE 4 TVSTOP LVCONT ERCONT IWRITE (FLAGS 0 1 1 1 LINE 5 RHSEED (RANDOM GENERATOR SEED FOR STARTING VECTOR IN INVERM) 45329517 LINE 6 MATNO N 100 100 -------------------------------------------------------------------------