Settings#

Legate Sparse has runtime settings that can be configured through environment variables.

`fast-spgemm`#

Type:: bool (“0” or “1”)
Env var:: LEGATE_SPARSE_FAST_SPGEMM
Default:: False

Switch to faster CUSPARSE_SPGEMM_ALG1, which, however, use significantly more FB memory. It will be used by default when cusparse<12.1, where memory-restricted SpGEMM was introduced.

`cudss-comm-lib`#

Type:: str
Env var:: CUDSS_COMM_LIB
Default:: ‘’

For multi-gpu runs, set CUDSS_COMM_LIB env to /path/to/libcudss_commlayer_nccl.so