Update to use latest ELPA library version (lanl#742)

Author: jeanlucf22

scripts/build_olcf_summit_gnu_elpa_essl.sh

@@ -37,7 +37,7 @@ export SCALAPACK_LIBRARIES=${SCALAPACK_LIBRARIES:="-L$OLCF_NETLIB_SCALAPACK_ROOT
 
 export BML_CUDA=${BML_CUDA:=yes}
 export BML_ELPA=${BML_ELPA:=yes}
-export ELPA_DIR=${ELPA_DIR:=/ccs/proj/csc304/elpa}
+export ELPA_DIR=${ELPA_DIR:=/ccs/proj/csc304/elpa/nvidia-gcc}
 export EXTRA_LINK_FLAGS=${EXTRA_LINK_FLAGS:="-lgfortran"}
 
 #use jsrun to run tests on a compute node

src/C-interface/distributed2d/bml_diagonalize_distributed2d_typed.c

@@ -380,7 +380,7 @@ void TYPED_FUNC(
     elpa_set(handle, "solver", ELPA_SOLVER_2STAGE, &error_elpa);
     assert(error_elpa == ELPA_OK);
 
-    elpa_set(handle, "gpu", 1, &error_elpa);
+    elpa_set(handle, "nvidia-gpu", 1, &error_elpa);
     assert(error_elpa == ELPA_OK);
 
     bml_matrix_t *Alocal = A->matrix;