diff options
| author | Ian Hinder <ian.hinder@aei.mpg.de> | 2012-05-02 14:56:10 +0200 |
|---|---|---|
| committer | Ian Hinder <ian.hinder@aei.mpg.de> | 2012-05-02 14:56:52 +0200 |
| commit | b47ab113b482b752aef8201bcaa8a4a75ed59cd4 (patch) | |
| tree | 2d10a9d7ed462a9370a613b7ce11b993cd5516da /Auxiliary | |
| parent | 9c0bc951b82e9e60b66cd48e2f8b34bd0007c4cd (diff) | |
GenericFD: Provide annotation to sgn function for CUDA
Diffstat (limited to 'Auxiliary')
| -rw-r--r-- | Auxiliary/Cactus/KrancNumericalTools/GenericFD/src/GenericFD.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Auxiliary/Cactus/KrancNumericalTools/GenericFD/src/GenericFD.h b/Auxiliary/Cactus/KrancNumericalTools/GenericFD/src/GenericFD.h index 65be7c5..6e3ed2b 100644 --- a/Auxiliary/Cactus/KrancNumericalTools/GenericFD/src/GenericFD.h +++ b/Auxiliary/Cactus/KrancNumericalTools/GenericFD/src/GenericFD.h @@ -57,7 +57,14 @@ extern "C" { (*(CCTK_REAL const*)&((char const*)(var))[cdi*(i)+cdj*(j)+cdk*(k)]) /* Implement the signum function, used for Mathematica's Sign function */ -static inline CCTK_REAL sgn(CCTK_REAL x) + +#ifdef __CUDACC__ +#define KRANC_WHERE __device__ +#else +#define KRANC_WHERE +#endif + +KRANC_WHERE static inline CCTK_REAL sgn(CCTK_REAL x) { return x==(CCTK_REAL)0.0 ? (CCTK_REAL)0.0 : copysign((CCTK_REAL)1.0, x); } |