Section 3: library functions
claed8.f – SynopsisFunctions/Subroutinessubroutine claed8 (K, N, QSIZ, Q, LDQ, D, RHO, CUTPNT, Z, DLAMDA, Q2, LDQ2, W, INDXP, INDX, INDXQ, PERM, GIVPTR, GIVCOL, GIVNUM, INFO) CLAED8 used by sstedc. Merges eigenvalues and deflates secular equation. Used when the original matrix is dense. Function/Subroutine Documentationsubroutine claed8 (integerK, integerN, integerQSIZ, complex, dimension( ldq, * )Q, integerLDQ, real,…
claed7.f – SynopsisFunctions/Subroutinessubroutine claed7 (N, CUTPNT, QSIZ, TLVLS, CURLVL, CURPBM, D, Q, LDQ, RHO, INDXQ, QSTORE, QPTR, PRMPTR, PERM, GIVPTR, GIVCOL, GIVNUM, WORK, RWORK, IWORK, INFO) CLAED7 used by sstedc. Computes the updated eigensystem of a diagonal matrix after modification by a rank-one symmetric matrix. Used when the original matrix is dense. Function/Subroutine Documentationsubroutine claed7…
claed0.f – SynopsisFunctions/Subroutinessubroutine claed0 (QSIZ, N, D, E, Q, LDQ, QSTORE, LDQS, RWORK, IWORK, INFO) CLAED0 used by sstedc. Computes all eigenvalues and corresponding eigenvectors of an unreduced symmetric tridiagonal matrix using the divide and conquer method. Function/Subroutine Documentationsubroutine claed0 (integerQSIZ, integerN, real, dimension( * )D, real, dimension( * )E, complex, dimension( ldq, * )Q,…
cladiv.f – SynopsisFunctions/SubroutinesCOMPLEX function cladiv (X, Y) CLADIV performs complex division in real arithmetic, avoiding unnecessary overflow. Function/Subroutine DocumentationCOMPLEX function cladiv (complexX, complexY)CLADIV performs complex division in real arithmetic, avoiding unnecessary overflow. Purpose: CLADIV := X / Y, where X and Y are complex. The computation of X / Y will not overflow on an…
clacrt.f – SynopsisFunctions/Subroutinessubroutine clacrt (N, CX, INCX, CY, INCY, C, S) CLACRT performs a linear transformation of a pair of complex vectors. Function/Subroutine Documentationsubroutine clacrt (integerN, complex, dimension( * )CX, integerINCX, complex, dimension( * )CY, integerINCY, complexC, complexS)CLACRT performs a linear transformation of a pair of complex vectors. Purpose: CLACRT performs the operation ( c…
clacrm.f – SynopsisFunctions/Subroutinessubroutine clacrm (M, N, A, LDA, B, LDB, C, LDC, RWORK) CLACRM multiplies a complex matrix by a square real matrix. Function/Subroutine Documentationsubroutine clacrm (integerM, integerN, complex, dimension( lda, * )A, integerLDA, real, dimension( ldb, * )B, integerLDB, complex, dimension( ldc, * )C, integerLDC, real, dimension( * )RWORK)CLACRM multiplies a complex matrix by…
clacpy.f – SynopsisFunctions/Subroutinessubroutine clacpy (UPLO, M, N, A, LDA, B, LDB) CLACPY copies all or part of one two-dimensional array to another. Function/Subroutine Documentationsubroutine clacpy (characterUPLO, integerM, integerN, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldb, * )B, integerLDB)CLACPY copies all or part of one two-dimensional array to another. Purpose: CLACPY copies all or…
clacp2.f – SynopsisFunctions/Subroutinessubroutine clacp2 (UPLO, M, N, A, LDA, B, LDB) CLACP2 copies all or part of a real two-dimensional array to a complex array. Function/Subroutine Documentationsubroutine clacp2 (characterUPLO, integerM, integerN, real, dimension( lda, * )A, integerLDA, complex, dimension( ldb, * )B, integerLDB)CLACP2 copies all or part of a real two-dimensional array to a complex…
clacon.f – SynopsisFunctions/Subroutinessubroutine clacon (N, V, X, EST, KASE) CLACON estimates the 1-norm of a square matrix, using reverse communication for evaluating matrix-vector products. Function/Subroutine Documentationsubroutine clacon (integerN, complex, dimension( n )V, complex, dimension( n )X, realEST, integerKASE)CLACON estimates the 1-norm of a square matrix, using reverse communication for evaluating matrix-vector products. Purpose: CLACON estimates…
clacn2.f – SynopsisFunctions/Subroutinessubroutine clacn2 (N, V, X, EST, KASE, ISAVE) CLACN2 estimates the 1-norm of a square matrix, using reverse communication for evaluating matrix-vector products. Function/Subroutine Documentationsubroutine clacn2 (integerN, complex, dimension( * )V, complex, dimension( * )X, realEST, integerKASE, integer, dimension( 3 )ISAVE)CLACN2 estimates the 1-norm of a square matrix, using reverse communication for evaluating…
clacgv.f – SynopsisFunctions/Subroutinessubroutine clacgv (N, X, INCX) CLACGV conjugates a complex vector. Function/Subroutine Documentationsubroutine clacgv (integerN, complex, dimension( * )X, integerINCX)CLACGV conjugates a complex vector. Purpose: CLACGV conjugates a complex vector of length N. Parameters: N N is INTEGER The length of the vector X. N >= 0.X X is COMPLEX array, dimension (1+(N-1)*abs(INCX)) On…
clabrd.f – SynopsisFunctions/Subroutinessubroutine clabrd (M, N, NB, A, LDA, D, E, TAUQ, TAUP, X, LDX, Y, LDY) CLABRD reduces the first nb rows and columns of a general matrix to a bidiagonal form. Function/Subroutine Documentationsubroutine clabrd (integerM, integerN, integerNB, complex, dimension( lda, * )A, integerLDA, real, dimension( * )D, real, dimension( * )E, complex, dimension(…
CK_RWCOHORT_WRITE_UNLOCK – relinquish write access for cohort-based reader-writer lock LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_cohort.h Fn CK_RWCOHORT_NEUTRAL_WRITE_UNLOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_RP_WRITE_UNLOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_WP_WRITE_UNLOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context DescriptionThis call will relinquish write permission for…
CK_RWCOHORT_WRITE_LOCK – acquite write access for a cohort-based reader-writer lock LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_cohort.h Fn CK_RWCOHORT_NEUTRAL_WRITE_LOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_RP_WRITE_LOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_WP_WRITE_LOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context DescriptionThis call will acquire write permission…
CK_RWCOHORT_READ_UNLOCK – relinquish read-only access to cohort-based reader-writer lock LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_cohort.h Fn CK_RWCOHORT_NEUTRAL_READ_UNLOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_RP_READ_UNLOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_WP_READ_UNLOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context DescriptionThis call will relinquish read-only permission to…
CK_RWCOHORT_READ_LOCK – acquire read-only permission for cohort-based reader-writer lock LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_cohort.h Fn CK_RWCOHORT_NEUTRAL_READ_LOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_RP_READ_LOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context Fn CK_RWCOHORT_WP_READ_LOCK COHORT_NAME cohort_name LOCK *lock COHORT *cohortvoid *global_context void *local_context DescriptionThis call will acquire read-only permission from…
CK_RWCOHORT_PROTOTYPE – define reader-writer cohort-based lock using the specified cohort type LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_rwcohort.h Fn CK_RWCOHORT_NEUTRAL_PROTOTYPE COHORT_NAME cohort_name Fn CK_RWCOHORT_RP_PROTOTYPE COHORT_NAME cohort_name Fn CK_RWCOHORT_WP_PROTOTYPE COHORT_NAME cohort_name DescriptionThe ck_rwcohort.h header file does not define any cohort types. Instead, the user must use the CK_RWCOHORT_PROTOTYPE macro to define any types they want to use….
CK_RWCOHORT_INSTANCE – declare an instance of a cohort-based reader-writer lock type LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_cohort.h Fn CK_RWCOHORT_NEUTRAL_INSTANCE COHORT_NAME cohort_name Fn CK_RWCOHORT_RP_INSTANCE COHORT_NAME cohort_name Fn CK_RWCOHORT_WP_INSTANCE COHORT_NAME cohort_name DescriptionThe user must use this macro to declare instances of lock types that they have defined using the CK_RWCOHORT_PROTOTYPE3 macro. The cohort_name must be the same…
CK_RWCOHORT_INIT – initialize instance of a cohort-based reader-writer lock type LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_rwcohort.h Fn CK_RWCOHORT_NEUTRAL_INIT COHORT_NAME cohort_name LOCK *lock Fn CK_RWCOHORT_RP_INIT COHORT_NAME cohort_name LOCK *lock unsigned int wait_limit Fn CK_RWCOHORT_WP_INIT COHORT_NAME cohort_name LOCK *lock unsigned int wait_limit DescriptionThis macro initializes the lock instance pointed to by the Fa lock argument. Until a…
CK_RHS_HASH – invoke hash function with hash set seed LibraryConcurrency Kit (libck, -lck) SynopsisIn ck_rhs.h Ft unsigned long Fn CK_RHS_HASH ck_rhs_t *hs ck_rhs_hash_cb_t *hf const void *key DescriptionThe Fn CK_RHS_HASH 3 macro will invoke the hash function pointed to by the Fa hf argument with the seed value associated with Fa hs and the key…