Added files for the FFT calculation

src/Makefile.am

@@ -42,12 +42,13 @@ AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
     serial_io.c timers.c debug.c scheduler.c proxy.c parallel_io.c \
     units.c common_io.c single_io.c multipole.c version.c map.c \
     kernel_hydro.c tools.c part.c partition.c clocks.c parser.c \
-    physical_constants.c potentials.c hydro_properties.c
+    physical_constants.c potentials.c hydro_properties.c \
+    runner_doiact_fft.c
 
 # Include files for distribution, not installation.
 nobase_noinst_HEADERS = approx_math.h atomic.h cycle.h error.h inline.h kernel_hydro.h kernel_gravity.h \
-		 kernel_long_gravity.h vector.h runner_doiact.h runner_doiact_grav.h units.h intrinsics.h \
-		 minmax.h kick.h timestep.h drift.h \
+		 kernel_long_gravity.h vector.h runner_doiact.h runner_doiact_grav.h runner_doiact_fft.h \
+		 units.h intrinsics.h  minmax.h kick.h timestep.h drift.h \
 		 gravity.h gravity_io.h \
 		 gravity/Default/gravity.h gravity/Default/gravity_iact.h gravity/Default/gravity_io.h \
 		 gravity/Default/gravity_debug.h gravity/Default/gravity_part.h  \

src/runner.c

@@ -89,6 +89,7 @@ const char runner_flip[27] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
 
 /* Import the gravity loop functions. */
 #include "runner_doiact_grav.h"
+#include "runner_doiact_fft.h"
 
 /**
  * @brief Calculate gravity acceleration from external potential
@@ -1129,6 +1130,7 @@ void *runner_main(void *data) {
         case task_type_grav_gather_m:
           break;
         case task_type_grav_fft:
+	  runner_do_grav_fft(r);
           break;
         case task_type_grav_external:
           runner_do_grav_external(r, t->ci, 1);

src/runner_doiact_fft.c

+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2016 Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+
+/* Config parameters. */
+#include "../config.h"
+
+/* Some standard headers. */
+#include <pthread.h>
+
+/* This object's header. */
+#include "runner_doiact_fft.h"
+
+/* Local includes. */
+#include "runner.h"
+
+void runner_do_grav_fft(struct runner *r) {
+
+
+}

src/runner_doiact_fft.h

+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2016 Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_RUNNER_DOIACT_FFT_H
+#define SWIFT_RUNNER_DOIACT_FFT_H
+
+struct runner;
+
+void runner_do_grav_fft(struct runner *r);
+
+#endif /* SWIFT_RUNNER_DOIACT_FFT_H */