Known Issues
Known issues with the Krisp VIVA SDK and how to work around them.
Crash on Linux x64
The OpenBLAS library may fail to correctly identify certain AMD CPUs. This will lead to a crash due to the execution of unsupported AVX-512 instructions. The issue can be resolved by manually setting the OPENBLAS_CORETYPE environment variable before loading the Krisp SDK.
Fix
Run one of the following commands, depending on your AMD Zen CPU generation:
AMD Zen 1st Generation
export OPENBLAS_CORETYPE=HASWELLAMD Zen 2nd-3rd Generation
export OPENBLAS_CORETYPE=ZENAMD Zen 4th Generation
export OPENBLAS_CORETYPE=SKYLAKEXReference
https://github.com/OpenMathLib/OpenBLAS/blob/v0.3.29/README.md
Increased CPU Consumption
The SDK creates a thread pool by default. While this may slightly improve audio frame processing time, it can lead to significant CPU overhead, especially in multi-process setups where each process spawns its own thread pool.
Fix
Set this before loading the Krisp SDK to ensure single-threaded execution:
export OPENBLAS_NUM_THREADS=1Notes
Single-threaded execution will be the default in the next Server SDK release.
Updated 23 days ago