Setup for DNN regression on lxplus

Dear experts,
I would like to run a DNN regression on lxplus.

I tried on lxplus770 with ROOT 6.18 and get this error:
Multi-core CPU backend not enabled. Please make sure you have a BLAS implementation and it was successfully detected by CMake as well that the imt CMake flag is set.

Could you please tell me which setup in lxplus should I use for DNN_CPU ?
Best, Marianna.

Hi Marianna,

Which builds of ROOT are you using ? From a pre-compiled binary or from source ?
I think a binary from cvmfs should have the BLAS support