vmlSetErrorCallBack

Sets the additional error handler callback function and gets the old callback function.

Syntax

oldcallback = vmlseterrorcallback( callback )

Include Files

  • mkl_vml.f90

Input Parameters

Name

 

Description

callback

Address of the callback function.

The callback function has the following format:

INTEGER FUNCTION ERRFUNC(par)
 TYPE (ERROR_STRUCTURE) par
 ! ...
 ! user error processing
 ! ...
 ERRFUNC = 0
 ! if ERRFUNC= 0 - standard VM error handler
 ! is called after the callback
 ! if ERRFUNC != 0 - standard VM error handler
 ! is not called
END

The passed error structure is defined as follows:

TYPE ERROR_STRUCTURE SEQUENCE
INTEGER*4 ICODE
INTEGER*4 IINDEX
REAL*8 DBA1
REAL*8 DBA2
REAL*8 DBR1
REAL*8 DBR2
CHARACTER(64) CFUNCNAME
INTEGER*4 IFUNCNAMELEN
REAL*8 DBA1IM
REAL*8 DBA2IM
REAL*8 DBR1IM
REAL*8 DBR2IM
 END TYPE ERROR_STRUCTURE

     

Output Parameters

Name

Type

Description

oldcallback

INTEGER

Address of the former callback function.

Note

This function does not have a FORTRAN 77 interface due to the use of internal structures.

Description

The callback function is called on each VM mathematical function error if VML_ERRMODE_CALLBACK error mode is set (see "Values of the mode Parameter").

Use the vmlSetErrorCallBack() function if you need to define your own callback function instead of default empty callback function.

The input structure for a callback function contains the following information about the error encountered:

  • the input value that caused an error

  • location (array index) of this value

  • the computed result value

  • error code

  • name of the function in which the error occurred.

You can insert your own error processing into the callback function. This may include correcting the passed result values in order to pass them back and resume computation. The standard error handler is called after the callback function only if it returns 0.

Select sticky button color: 
Orange (only for download buttons)
Para obtener información más completa sobre las optimizaciones del compilador, consulte nuestro Aviso de optimización.