| J. Choi, J. Demmel, I. Dhillon, J. Dongarra, S. Ostrouchov, A. Petitet, K. Stanley, D. Walker, and R. C. Whaley. Installation guide for ScaLAPACK. Computer Science Dept. Technical Report CS-95-280, University of Tennessee, Knoxville, TN, 1995. (Also LAPACK Working Note #93). |
....the global symmetric submatrix A ia:ia n 1, ja:ja n 1 . Eigenvalues and eigenvectors can be selected by specifying a range of values or a range of indices for the eigenvalues. If n = 0, no computation is performed and the subroutine returns after doing some parameter checking. See references [6], 15] 16] and [17] Table 42. Data Types A, vl, vu, abstol, orfac, Z, w, work, gap iwork, ifail, iclustr Subroutine Long precision real Integer PDSYEVX Syntax FORTRAN CALL PDSYEVX (jobz, range, uplo, n, a, ia, ja, desc a, vl, vu, il, iu, abstol, m, nz, w, orfac, z, iz, jz, desc z, work, ....
....matrix A to symmetric tridiagonal form T by an orthogonal similarity transformation: T = Q T AQ where: A represents the global symmetric submatrix A ia:ia n 1, ja:ja n 1 . If n = 0, no computation is performed and the subroutine returns after doing some parameter checking. See references [6] and [13] Table 43. Data Types A, d, e, #, work Subroutine Long precision real PDSYTRD Syntax FORTRAN CALL PDSYTRD (uplo, n, a, ia, ja, desc a, d, e, tau, work, lwork, info) C and C pdsytrd (uplo, n, a, ia, ja, desc a, d, e, tau, work, lwork, info) On Entry uplo indicates whether the ....
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Choi, J.; Demmel, J.; Dhillon, I.; Dongarra, J. J.; Ostrouchov, L. S.; Petitet, A.; Walker, D.; Whaley, R. C.; Stanley, K. March 1995. "Installation Guide for ScaLAPACK," LAPACK Working Note 93, University of Tennessee, Technical Report CS-95-280.
....This chapter presents and discusses the results obtained. All experiments were performed in double precision arithmetic, and the matrix operands were randomly generated. The vendor supplied BLAS library was used on the Intel XP S Paragon and the IBM SP. The current native version 1. 0 of the BLACS [17] was used on both systems. The experimental programs were compiled and executed unchanged on both platforms. A testing program was developed for debugging purposes as well as ensuring the validity of the results. This program was adapted from the more general testing software accompanying the ....
J. Choi, J. Demmel, I. Dhillon, J. Dongarra, S. Ostrouchov, A. Petitet, K. Stanley, D. Walker, and R. C. Whaley. Installation Guide for ScaLAPACK. Technical Report UT CS-95-280, LAPACK Working Note #93, University of Tennessee, 1995.
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J. Choi, J. Demmel, I. Dhillon, J. Dongarra, S. Ostrouchov, A. Petitet, K. Stanley, D. Walker, and R. C. Whaley. Installation guide for ScaLAPACK. Computer Science Dept. Technical Report CS-95-280, University of Tennessee, Knoxville, TN, 1995. (Also LAPACK Working Note #93).
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