gpu csa fixes (#111)

Author: Julian Harbarth

modules/csa/CMakeLists.txt

@@ -27,5 +27,6 @@ if (MOTIS_CUDA)
       LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}
       INSTALL_RPATH "$ORIGIN/../lib:$ORIGIN/")
   target_include_directories(gpucsa PUBLIC include)
+  set_property(TARGET gpucsa PROPERTY CUDA_ARCHITECTURES 75 61)
   target_link_libraries(motis-csa gpucsa)
 endif()

modules/csa/include/motis/csa/gpu/gpu_timetable.h

@@ -9,7 +9,7 @@ struct csa_timetable;
 struct gpu_timetable {
   gpu_timetable() = default;
   explicit gpu_timetable(csa_timetable&);
-  ~gpu_timetable() = default;
+  ~gpu_timetable();
 
   gpu_timetable(gpu_timetable&&) noexcept;
   gpu_timetable& operator=(gpu_timetable&&) noexcept;

modules/csa/src/gpu/gpu_csa.cu

@@ -327,7 +327,7 @@ fail:
 
 void gpu_csa_free_result(gpu_csa_result* r) {
   r->station_arrivals_ =
-      r->station_arrivals_ == nullptr ? nullptr : r->station_arrivals_ + 1;
+      r->station_arrivals_ == nullptr ? nullptr : r->station_arrivals_ - 1;
   cudaFreeHost(r->station_arrivals_);
   cudaFreeHost(r->trip_reachable_);
   r->station_arrivals_ = nullptr;