diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5a514b..45c3a2b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,11 +30,11 @@ endif()
 message(STATUS "Build type: " ${CMAKE_BUILD_TYPE})
 
 ## Options
-option(DOUBLE_PRECISION "Generates double precision code."                    OFF)
-option(BUILD_SAMPLES    "Builds projects in samples subdirectory."            OFF)
-option(BUILD_STANDALONE "Builds standalone Astaroth."                         ON)
-option(MPI_ENABLED      "Enables additional functions for MPI communciation." OFF)
-option(MULTIGPU_ENABLED "Enables multi-GPU on a single node. Uses peer-to-peer communication instead of MPI. Affects Legacy & Node layers only." ON)
+option(DOUBLE_PRECISION "Generates double precision code."                    ON)
+option(BUILD_SAMPLES    "Builds projects in samples subdirectory."            ON)
+option(BUILD_STANDALONE "Builds standalone Astaroth."                         OFF)
+option(MPI_ENABLED      "Enables additional functions for MPI communciation." ON)
+option(MULTIGPU_ENABLED "Enables multi-GPU on a single node. Uses peer-to-peer communication instead of MPI. Affects Legacy & Node layers only." OFF)
 
 ## Options (DEPRECATED)
 # option(BUILD_DEBUG              "Builds the program with extensive error checking"          OFF)
diff --git a/acc/mhd_solver/stencil_kernel.ac b/acc/mhd_solver/stencil_kernel.ac
index 905eb65..0f37ea5 100644
--- a/acc/mhd_solver/stencil_kernel.ac
+++ b/acc/mhd_solver/stencil_kernel.ac
@@ -5,8 +5,8 @@
 #define LMAGNETIC (1)
 #define LENTROPY (1)
 #define LTEMPERATURE (0)
-#define LFORCING (1)
-#define LUPWD (1)
+#define LFORCING (0)
+#define LUPWD (0)
 #define LSINK (0)
 
 #define AC_THERMAL_CONDUCTIVITY (0.001) // TODO: make an actual config parameter
diff --git a/config/astaroth.conf b/config/astaroth.conf
index abc1613..ccefc45 100644
--- a/config/astaroth.conf
+++ b/config/astaroth.conf
@@ -5,9 +5,9 @@
  * "Compile-time" params
  * =============================================================================
  */
-AC_nx = 128
-AC_ny = 128
-AC_nz = 128
+AC_nx = 512
+AC_ny = 512
+AC_nz = 512
 
 AC_dsx = 0.04908738521
 AC_dsy = 0.04908738521
diff --git a/src/utils/modelsolver.c b/src/utils/modelsolver.c
index 92eb71c..e482bd9 100644
--- a/src/utils/modelsolver.c
+++ b/src/utils/modelsolver.c
@@ -39,7 +39,7 @@
 #define LENTROPY (1)
 #define LTEMPERATURE (0)
 #define LFORCING (0)
-#define LUPWD (1)
+#define LUPWD (0)
 #define AC_THERMAL_CONDUCTIVITY ((Scalar)(0.001)) // TODO: make an actual config parameter
 
 typedef AcReal Scalar;