NAME

drmaa_strerror, drmaa_get_contact, drmaa_version, drmaa_get_DRM_system - Miscellaneous DRMAA functions.

SYNOPSIS

#include "drmaa.h"

const char *drmaa_strerror(

int drmaa_errno

);

int drmaa_get_contact(

char *contact,
size_t contact_len,
char *error_diagnosis,
size_t error_diag_len

);

int drmaa_version(

unsigned int *major,
unsigned int *minor,
char *error_diagnosis,
size_t error_diag_len

);

int drmaa_get_DRM_system(

char *drm_system,
size_t drm_system_len,
char *error_diagnosis,
size_t error_diag_len

);

int drmaa_get_DRMAA_implementation(

char *drm_impl,
size_t drm_impl_len,
char *error_diagnosis,
size_t error_diag_len

);

DESCRIPTION

The drmaa_strerror() function returns a message text associated with the DRMAA error number, drmaa_errno. For invalid DRMAA error codes `NULL' is returned.

drmaa_get_contact()

The drmaa_get_contact() returns an opaque string containing contact information related to the current DRMAA session to be used with the drmaa_init(3) function. The opaque string contains the information required by drmaa_init() to reconnect to the current session instead of creating a new session. drmaa_init(3) function.

The drmaa_get_contact() function returns the same value before and after drmaa_init(3) is called.

drmaa_version()

The drmaa_version() function returns into the integers pointed to by major and minor, the major and minor version numbers of the DRMAA library. For a DRMAA 1.0 compliant implementation `1' and `0' will be returned in major and minor, respectively.

drmaa_get_DRM_system()

The drmaa_get_DRM_system() function returns into drm_system up to drm_system_len characters of a string containing Grid Engine product and version information.

The drmaa_get_DRM_system() function returns the same value before and after drmaa_init(3) is called.

drmaa_get_DRMAA_implementation()

The drmaa_get_DRMAA_implementation() function returns into drm_system up to drm_system_len characters of a string containing the Grid Engine DRMAA implementation version information. In the current implementation, the drmaa_get_DRMAA_implementation() function returns the same result as the drmaa_get_DRM_system() function.

The drmaa_get_DRMAA_implementation() function returns the same value before and after drmaa_init(3) is called.

ENVIRONMENTAL VARIABLES

SGE_ROOT: Specifies the location of the Grid Engine standard configuration files.
SGE_CELL: If set, specifies the default Grid Engine cell to be used. To address a Grid Engine cell Grid Engine uses (in the order of precedence):

The name of the cell specified in the environment variable SGE_CELL, if it is set.

The name of the default cell, i.e. default.

SGE_DEBUG_LEVEL: If set, specifies that debug information should be written to stderr. In addition the level of detail in which debug information is generated is defined.
SGE_QMASTER_PORT: If set, specifies the tcp port on which sge_qmaster(8) is expected to listen for communication requests. Most installations will use a services map entry instead to define that port.

RETURN VALUES

Upon successful completion, drmaa_get_contact(), drmaa_version(), and drmaa_get_DRM_system() return DRMAA_ERRNO_SUCCESS. Other values indicate an error. Up to error_diag_len characters of error related diagnosis information is then provided in the buffer error_diagnosis.

ERRORS

The drmaa_get_contact(), drmaa_version(), drmaa_get_DRM_system(), and drmaa_get_DRMAA_implementation() can fail with:

DRMAA_ERRNO_INTERNAL_ERROR: Unexpected or internal DRMAA error, like system call failure, etc.
DRMAA_ERRNO_DRM_COMMUNICATION_FAILURE: Could not contact DRM system for this request.
DRMAA_ERRNO_AUTH_FAILURE: The specified request is not processed successfully due to authorization failure.
DRMAA_ERRNO_INVALID_ARGUMENT: The input value for an argument is invalid.
DRMAA_ERRNO_NO_MEMORY: Failed allocating memory.

The drmaa_get_contact() and drmaa_get_DRM_system() can fail with:

DRMAA_ERRNO_NO_ACTIVE_SESSION: Failed because there is no active session.