To move data to your daos posix container

using CP

cp  /lus/flare/projects/CSC250STDM10_CNDA/kaushik/thundersvm/input_data/real-sim_M100000_K25000_S0.836  /tmp/${DAOS_POOL}/${DAOS_CONT} 

using daos filesystem copy

daos filesystem copy --src /lus/flare/projects/CSC250STDM10_CNDA/kaushik/thundersvm/input_data/real-sim_M100000_K25000_S0.836               --dst daos://tmp/${DAOS_POOL}/${DAOS_CONT}   

You may have to replace the DAOS_POOL and DAOS_CONT label with its UUIDs. UUIDs can be copied from

daos pool query ${DAOS_POOL}
daos container query     $DAOS_POOL_NAME  $DAOS_CONT_NAME 

using mpifileutils distributed CP (DCP)

You can also use other mpifileutils binaraies.

mpifileutils/bin> ls 
dbcast  dbz2  dchmod  dcmp  dcp  dcp1  ddup  dfilemaker1  dfind  dreln  drm  dstripe  dsync  dtar  dwalk

Ref: https://docs.daos.io/v2.4/testing/datamover/