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Corrected a stencil bug from der6

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This commit is contained in:
Miikka Vaisala
2019-06-25 11:25:14 +08:00
parent 59043e586b
commit 44f26cde42
1 changed files with 5 additions and 5 deletions
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10
acc/mhd_solver/stencil_assembly.sas
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@@ -25,9 +25,9 @@ der6x_upwd(in Scalar vertex)
return (Scalar){ Scalar(1.0/60.0)*inv_ds* ( return (Scalar){ Scalar(1.0/60.0)*inv_ds* (
- Scalar(20.0)* vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z] - Scalar(20.0)* vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z]
+ Scalar(15.0)*(vertex[vertexIdx.x, vertexIdx.y+1, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-1, vertexIdx.z]) + Scalar(15.0)*(vertex[vertexIdx.x+1, vertexIdx.y, vertexIdx.z] + vertex[vertexIdx.x-1, vertexIdx.y, vertexIdx.z])
- Scalar( 6.0)*(vertex[vertexIdx.x, vertexIdx.y+2, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-2, vertexIdx.z]) - Scalar( 6.0)*(vertex[vertexIdx.x+2, vertexIdx.y, vertexIdx.z] + vertex[vertexIdx.x-2, vertexIdx.y, vertexIdx.z])
+ vertex[vertexIdx.x, vertexIdx.y+3, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-3, vertexIdx.z])}; + vertex[vertexIdx.x+3, vertexIdx.y, vertexIdx.z] + vertex[vertexIdx.x-3, vertexIdx.y, vertexIdx.z])};
} }
Preprocessed Scalar Preprocessed Scalar
@@ -39,7 +39,7 @@ der6y_upwd(in Scalar vertex)
-Scalar( 20.0)* vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z] -Scalar( 20.0)* vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z]
+Scalar( 15.0)*(vertex[vertexIdx.x, vertexIdx.y+1, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-1, vertexIdx.z]) +Scalar( 15.0)*(vertex[vertexIdx.x, vertexIdx.y+1, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-1, vertexIdx.z])
-Scalar( 6.0)*(vertex[vertexIdx.x, vertexIdx.y+2, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-2, vertexIdx.z]) -Scalar( 6.0)*(vertex[vertexIdx.x, vertexIdx.y+2, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-2, vertexIdx.z])
+ vertex[vertexIdx.x, vertexIdx.y+3, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-3, vertexIdx.z])}; + vertex[vertexIdx.x, vertexIdx.y+3, vertexIdx.z] + vertex[vertexIdx.x, vertexIdx.y-3, vertexIdx.z])};
} }
Preprocessed Scalar Preprocessed Scalar
@@ -51,7 +51,7 @@ der6z_upwd(in Scalar vertex)
-Scalar( 20.0)* vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z] -Scalar( 20.0)* vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z]
+Scalar( 15.0)*(vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z+1] + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z-1]) +Scalar( 15.0)*(vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z+1] + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z-1])
-Scalar( 6.0)*(vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z+2] + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z-2]) -Scalar( 6.0)*(vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z+2] + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z-2])
+ vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z+3] + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z-3])}; + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z+3] + vertex[vertexIdx.x, vertexIdx.y, vertexIdx.z-3])};
} }
#endif #endif