Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 7/13/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

vslLoadStreamF

Creates new stream and reads stream descriptive data, including stream state, from binary file.

Syntax

errstatus = vslloadstreamf( stream, fname )

Include Files

  • mkl.fi, mkl_vsl.f90

Input Parameters

Name

Type

Description

fname

CHARACTER(*), INTENT(IN)

File name specified as a C-style null-terminated string

Output Parameters

Name

Type

Description

stream

TYPE(VSL_STREAM_STATE), INTENT(OUT)

Descriptor of a new random stream

errstatus

INTEGER

Error status of the operation

Description

The vslLoadStreamF function creates a new stream and reads stream descriptive data, including the stream state, from the binary file. A new random stream is created using the stream descriptive data from the binary file with the name fname. If the stream cannot be read (for example, an I/O error occurs or the file format is invalid), errstatus has a non-zero value. To save random stream to the file, use vslSaveStreamF function.

CAUTION:

Calling vslLoadStreamF with a previously initialized stream pointer can have unintended consequences such as a memory leak. To initialize a stream which has been in use until calling vslLoadStreamF, you should call the vslDeleteStream function first to deallocate the resources.

Product and Performance Information

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.

Notice revision #20201201

Return Values

VSL_ERROR_OK, VSL_STATUS_OK

Indicates no error, execution is successful.

VSL_ERROR_NULL_PTR

fname is a NULL pointer.

VSL_RNG_ERROR_FILE_OPEN

Indicates an error in opening the file.

VSL_RNG_ERROR_FILE_WRITE

Indicates an error in writing the file.

VSL_RNG_ERROR_FILE_CLOSE

Indicates an error in closing the file.

VSL_ERROR_MEM_FAILURE

System cannot allocate memory for internal needs.

VSL_RNG_ERROR_BAD_FILE_FORMAT

Unknown file format.

VSL_RNG_ERROR_UNSUPPORTED_FILE_VER

File format version is unsupported.

VSL_RNG_ERROR_NONDETERMINISTIC_NOT_SUPPORTED

Non-deterministic random number generator is not supported.

VSL_RNG_ERROR_ARS5_NOT_SUPPORTED

ARS-5 random number generator is not supported on the CPU running the application.