enable ninja builds on v100 tests

Author: fluidnumerics-joe

.superci/galapagos.v100.yml

@@ -33,7 +33,8 @@ steps:
         mkdir -p ${BUILD_DIR}
         mkdir -p ${OUTDIR}
         cd ${BUILD_DIR}
-        cmake -DCMAKE_INSTALL_PREFIX=${PREFIX} \
+        cmake -G Ninja \
+              -DCMAKE_INSTALL_PREFIX=${PREFIX} \
               -DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
               -DSELF_ENABLE_GPU=${ENABLE_GPU} \
               -DSELF_ENABLE_MULTITHREADING=${ENABLE_MULTITHREADING} \