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Bugfixes

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This commit is contained in:
André R. Brodtkorb
2018-11-11 15:12:56 +01:00
parent e98ae0a979
commit dcb849b705
3 changed files with 35 additions and 16 deletions
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22
GPUSimulators/cuda/common.h
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@@ -114,15 +114,15 @@ enum BoundaryCondition {
};
inline __device__ BoundaryCondition getBCNorth(int bc_) {
return static_cast<BoundaryCondition>(bc_ & 0x000F);
return static_cast<BoundaryCondition>(bc_ & 0x0000000F);
}
inline __device__ BoundaryCondition getBCSouth(int bc_) {
return static_cast<BoundaryCondition>((bc_ >> 8) & 0x000F);
return static_cast<BoundaryCondition>((bc_ >> 8) & 0x0000000F);
}
inline __device__ BoundaryCondition getBCEast(int bc_) {
return static_cast<BoundaryCondition>((bc_ >> 16) & 0x000F);
return static_cast<BoundaryCondition>((bc_ >> 16) & 0x0000000F);
}
inline __device__ BoundaryCondition getBCWest(int bc_) {
@@ -260,12 +260,26 @@ inline __device__ void writeBlock(float* ptr_, int pitch_,
float* const row = (float*) ((char*) ptr_ + pitch_*tj);
//Handle runge-kutta timestepping here
row[ti] = shmem[ty][tx];
/**
* SSPRK2
* u^1 = u^n + dt*f(u^n)
* u^n+1 = 1/2*u^n + 1/2*(u^1 + dt*f(u^1))
*
* SSPRK3
* u^1 = u^n + dt*f(u^n)
* u^2 = 3/4 * u^n + 1/4 * (u^1 + dt*f(u^1))
* u^n+1 = 1/3 * u^n + 2/3 * (u^2 + dt*f(u^2))
*/
/*
if (rk_order_ == 2 && rk_step_ == 1) {
row[ti] = 0.5f*(row[ti] + shmem[ty][tx]);
}
else {
row[ti] = shmem[ty][tx];
}
}*/
}
}