Setting the Environment Variable for Conditional Numerical Reproducibility

The following examples illustrate the use of the MKL_CBWR environment variable. The first command

in each list

sets

Intel® oneAPI Math Kernel Library

to run in the CNR mode based on the default dispatching for your platform. The other two commands

in each list

are equivalent and set the CNR branch to Intel AVX

For the bash shell:

export MKL_CBWR="AUTO"

export MKL_CBWR="AVX"

export MKL_CBWR="BRANCH=AVX"

For the C shell (csh or tcsh):

setenv MKL_CBWR "AUTO"

setenv MKL_CBWR "AVX"

setenv MKL_CBWR "BRANCH=AVX"

In This Topic

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

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