Section 3: library functions
cpotrf.f – SynopsisFunctions/Subroutinessubroutine cpotrf (UPLO, N, A, LDA, INFO) CPOTRF Function/Subroutine Documentationsubroutine cpotrf (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, integerINFO)CPOTRF Purpose: CPOTRF computes the Cholesky factorization of a complex Hermitian positive definite matrix A. The factorization has the form A = U**H * U, if UPLO = ‘U’, or A = L *…
cpotf2.f – SynopsisFunctions/Subroutinessubroutine cpotf2 (UPLO, N, A, LDA, INFO) CPOTF2 computes the Cholesky factorization of a symmetric/Hermitian positive definite matrix (unblocked algorithm). Function/Subroutine Documentationsubroutine cpotf2 (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, integerINFO)CPOTF2 computes the Cholesky factorization of a symmetric/Hermitian positive definite matrix (unblocked algorithm). Purpose: CPOTF2 computes the Cholesky factorization of a complex…
cposvxx.f – SynopsisFunctions/Subroutinessubroutine cposvxx (FACT, UPLO, N, NRHS, A, LDA, AF, LDAF, EQUED, S, B, LDB, X, LDX, RCOND, RPVGRW, BERR, N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, NPARAMS, PARAMS, WORK, RWORK, INFO) CPOSVXX computes the solution to system of linear equations A * X = B for PO matrices Function/Subroutine Documentationsubroutine cposvxx (characterFACT, characterUPLO, integerN, integerNRHS, complex, dimension(…
cposvx.f – SynopsisFunctions/Subroutinessubroutine cposvx (FACT, UPLO, N, NRHS, A, LDA, AF, LDAF, EQUED, S, B, LDB, X, LDX, RCOND, FERR, BERR, WORK, RWORK, INFO) CPOSVX computes the solution to system of linear equations A * X = B for PO matrices Function/Subroutine Documentationsubroutine cposvx (characterFACT, characterUPLO, integerN, integerNRHS, complex, dimension( lda, * )A, integerLDA, complex,…
cposv.f – SynopsisFunctions/Subroutinessubroutine cposv (UPLO, N, NRHS, A, LDA, B, LDB, INFO) CPOSV computes the solution to system of linear equations A * X = B for PO matrices Function/Subroutine Documentationsubroutine cposv (characterUPLO, integerN, integerNRHS, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldb, * )B, integerLDB, integerINFO) CPOSV computes the solution to system of…
cporfsx.f – SynopsisFunctions/Subroutinessubroutine cporfsx (UPLO, EQUED, N, NRHS, A, LDA, AF, LDAF, S, B, LDB, X, LDX, RCOND, BERR, N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, NPARAMS, PARAMS, WORK, RWORK, INFO) CPORFSX Function/Subroutine Documentationsubroutine cporfsx (characterUPLO, characterEQUED, integerN, integerNRHS, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldaf, * )AF, integerLDAF, real, dimension( * )S, complex, dimension( ldb, *…
cporfs.f – SynopsisFunctions/Subroutinessubroutine cporfs (UPLO, N, NRHS, A, LDA, AF, LDAF, B, LDB, X, LDX, FERR, BERR, WORK, RWORK, INFO) CPORFS Function/Subroutine Documentationsubroutine cporfs (characterUPLO, integerN, integerNRHS, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldaf, * )AF, integerLDAF, complex, dimension( ldb, * )B, integerLDB, complex, dimension( ldx, * )X, integerLDX, real, dimension( * )FERR,…
cpoequb.f – SynopsisFunctions/Subroutinessubroutine cpoequb (N, A, LDA, S, SCOND, AMAX, INFO) CPOEQUB Function/Subroutine Documentationsubroutine cpoequb (integerN, complex, dimension( lda, * )A, integerLDA, real, dimension( * )S, realSCOND, realAMAX, integerINFO)CPOEQUB Purpose: CPOEQUB computes row and column scalings intended to equilibrate a symmetric positive definite matrix A and reduce its condition number (with respect to the two-norm)….
cpoequ.f – SynopsisFunctions/Subroutinessubroutine cpoequ (N, A, LDA, S, SCOND, AMAX, INFO) CPOEQU Function/Subroutine Documentationsubroutine cpoequ (integerN, complex, dimension( lda, * )A, integerLDA, real, dimension( * )S, realSCOND, realAMAX, integerINFO)CPOEQU Purpose: CPOEQU computes row and column scalings intended to equilibrate a Hermitian positive definite matrix A and reduce its condition number (with respect to the two-norm)….
cpocon.f – SynopsisFunctions/Subroutinessubroutine cpocon (UPLO, N, A, LDA, ANORM, RCOND, WORK, RWORK, INFO) CPOCON Function/Subroutine Documentationsubroutine cpocon (characterUPLO, integerN, complex, dimension( lda, * )A, integerLDA, realANORM, realRCOND, complex, dimension( * )WORK, real, dimension( * )RWORK, integerINFO)CPOCON Purpose: CPOCON estimates the reciprocal of the condition number (in the 1-norm) of a complex Hermitian positive definite matrix…
cpg_mcast_joined – Multicasts a zero copy buffer to all groups joined to a handle Synopsis#include <sys/uio.h> #include <corosync/cpg.h> int cpg_zcb_mcast_joined(cpg_handle_t handle, cpg_guarantee_t guarantee, const void *buffer,int msg_len ); DescriptionThe cpg_zcb_mcast_joined function will multicast a zero copy buffer message to all the processes that have been joined with the cpg_join(3) function for the same group name….
cpg_zcb_free – Frees a zero copy buffer Synopsis#include <corosync/cpg.h> int cpg_zcb_fre(cpg_handle_t handle, void *buffer); DescriptionThe cpg_zcb_free function will free a zero copy buffer. The argument handle describes the handle on which the buffer will be allocated. The argument buffer is the zero copy buffer to free. Return ValueThis call returns the CS_OK value if successful,…
cpg_zcb_alloc – Allocates a zero copy buffer Synopsis#include <corosync/cpg.h> int cpg_zcb_alloc(cpg_handle_t handle, size_t size, void **buffer); DescriptionThe cpg_zcb_alloc function will allocate a zero copy buffer for use with the cpg_zcb_mcast_joined(3) function. This buffer should not be used in another thread while a cpg_zcb_mcast_joined operation is taking place on the buffer. The buffer is allocated via…
cpg_model_initialize – Create a new connection to the CPG service Synopsis#include <corosync/cpg.h> cs_error_t cpg_model_initialize(cpg_handle_t *handle, cpg_model_t model, cpg_model_data_t *model_data, void *context); DescriptionThe cpg_model_initialize function is used to initialize a connection to the closed process groups API. Each application may have several connections to the CPG API. Each application uses the handle argument to uniquely identify…
cpg_membership_get – Returns a list of members of a CPG group Synopsis#include <corosync/cpg.h> int cpg_membership_get(cpg_handle_t handle, struct cpg_name *groupName, struct cpg_address *member_list, int *member_list_entries); DescriptionThe cpg_membership_get function is used to determine the current processes in the configuration. You probably will not need to call this function much as one of the first confchg callbacks you…
cpg_mcast_joined – Multicasts to all groups joined to a handle Synopsis#include <sys/uio.h> #include <corosync/cpg.h> int cpg_mcast_joined(cpg_handle_t handle, cpg_guarantee_t guarantee, struct iovec *iovec, int iov_len); DescriptionThe cpg_mcast_joined function will multicast a message to all the processes that have been joined with the cpg_join(3) function for the same group name. Messages that are sent to any of…
cpg_local_get – Returns the local node id Synopsis#include <corosync/cpg.h> int cpg_local_get(cpg_handle_t handle, unsigned int *local_nodeid); DescriptionThe cpg_local_get function is used to determine the local node’s identifier. The argument handle is used to reference the cpg instantiation. The argument local_nodeid will return the 32 bit node id. ErrorsThe errors are undocumented. See Alsocpg_overview(8), cpg_initialize(3), cpg_finalize(3), cpg_fd_get(3),…
cpg_leave – Leave a group in the CPG library Synopsis#include <corosync/cpg.h> int cpg_leave(cpg_handle_t handle, struct cpg_name *group); DescriptionThe cpg_leave function is used to leave a group. Once a group has been left the process will no longer receive messages or notifications about events in that group. Note that a process is only deemed to have…
cpg_join – Joins one or more groups in the CPG library Synopsis#include <corosync/cpg.h> int cpg_join(cpg_handle_t handle, struct cpg_name *group); DescriptionThe cpg_join function is used to join one group. When a group is joined, the cpg_mcast_joined(3) is called internally to multicast to the groups joined in the argument handle. The process will also get notifications of…
cpg_iteration_next – Return next item in iteration of CPG Synopsis#include <corosync/cpg.h> cs_error_t cpg_iteration_next (cpg_iteration_handle_t handle, struct cpg_iteration_description_t *description); DescriptionThe cpg_iter_next function is used to get next value in iteration. The handle argument is iterator handle obtained by cpg_iteration_initalize(3) function. description is pointer to structure with following definition: struct cpg_iteration_description_t { struct cpg_name group; uint32_t nodeid;…