Update linux.yml

Author: houjun

.github/workflows/linux.yml

@@ -113,6 +113,7 @@ jobs:
 
           export HDF5_PLUGIN_PATH=$VOL_DIR/install/lib
           export HDF5_VOL_CONNECTOR="pdc under_vol=0;under_info={}"
+          export LD_PRELOAD=$VOL_DIR/install/lib/libhdf5_vol_pdc.so
           
           # Run test
           mpirun -N 1 -n 1 -c 1 $PDC_DIR/bin/pdc_server.exe &