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Euler appears to work now

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This commit is contained in:
André R. Brodtkorb
2018-11-05 16:46:37 +01:00
parent 0671bd747a
commit e38885d39b
13 changed files with 702 additions and 19 deletions
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28
GPUSimulators/cuda/EE2D_KP07_dimsplit.cu
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@@ -154,10 +154,10 @@ __global__ void KP07DimsplitKernel(
//Read into shared memory
readBlock<w, h, gc>( rho0_ptr_, rho0_pitch_, Q[0], nx_+4, ny_+4);
readBlock<w, h, gc>(rho_u0_ptr_, rho_u0_pitch_, Q[1], nx_+4, ny_+4);
readBlock<w, h, gc>(rho_v0_ptr_, rho_v0_pitch_, Q[2], nx_+4, ny_+4);
readBlock<w, h, gc>( E0_ptr_, E0_pitch_, Q[3], nx_+4, ny_+4);
readBlock<w, h, gc>( rho0_ptr_, rho0_pitch_, Q[0], nx_, ny_);
readBlock<w, h, gc>(rho_u0_ptr_, rho_u0_pitch_, Q[1], nx_, ny_);
readBlock<w, h, gc>(rho_v0_ptr_, rho_v0_pitch_, Q[2], nx_, ny_);
readBlock<w, h, gc>( E0_ptr_, E0_pitch_, Q[3], nx_, ny_);
__syncthreads();
//Fix boundary conditions
@@ -226,6 +226,26 @@ __global__ void KP07DimsplitKernel(
evolveF<w, h, gc, vars>(Q, F, dx_, dt_);
__syncthreads();
//This is the RK2-part
const int tx = threadIdx.x + gc;
const int ty = threadIdx.y + gc;
const float q1 = Q[0][ty][tx];
const float q2 = Q[1][ty][tx];
const float q3 = Q[2][ty][tx];
const float q4 = Q[3][ty][tx];
__syncthreads();
readBlock<w, h, gc>( rho1_ptr_, rho1_pitch_, Q[0], nx_, ny_);
readBlock<w, h, gc>(rho_u1_ptr_, rho_u1_pitch_, Q[1], nx_, ny_);
readBlock<w, h, gc>(rho_v1_ptr_, rho_v1_pitch_, Q[2], nx_, ny_);
readBlock<w, h, gc>( E1_ptr_, E1_pitch_, Q[3], nx_, ny_);
__syncthreads();
Q[0][ty][tx] = 0.5f*( Q[0][ty][tx] + q1 );
Q[1][ty][tx] = 0.5f*( Q[1][ty][tx] + q2 );
Q[2][ty][tx] = 0.5f*( Q[2][ty][tx] + q3 );
Q[3][ty][tx] = 0.5f*( Q[3][ty][tx] + q4 );
}