Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 0.9
  • 09/09/2020
  • Public Content
Contents

p?lachkieee

Performs a simple check for the features of the IEEE standard.

Syntax

void
pslachkieee
(
MKL_INT
*isieee
,
float
*rmax
,
float
*rmin
);
void
pdlachkieee
(
MKL_INT
*isieee
,
float
*rmax
,
float
*rmin
);
Include Files
  • mkl_scalapack.h
Description
The
p?lachkieee
function
performs a simple check to make sure that the features of the IEEE standard are implemented. In some implementations,
p?lachkieee
 may not return.
This is a ScaLAPACK internal
function
and arguments are not checked for unreasonable values.
Input Parameters
rmax
(local).
The overflow threshold
(=
?lamch
 (
'O'
))
.
rmin
(local).
The underflow threshold
(=
?lamch
 (
'U'
))
.
Output Parameters
isieee
(local).
On exit,
isieee
 = 1
 implies that all the features of the IEEE standard that we rely on are implemented. On exit,
isieee
 = 0
 implies that some the features of the IEEE standard that we rely on are missing.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804