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author | Cedric Nugteren <web@cedricnugteren.nl> | 2016-05-14 18:06:00 +0200 |
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committer | Cedric Nugteren <web@cedricnugteren.nl> | 2016-05-14 18:06:00 +0200 |
commit | 5e1b2e021f4b746a77619e0ad5ab35d9a0d4df54 (patch) | |
tree | 4c41089bda681a26b677d946eef40b916e80afac /src/kernels | |
parent | 120c31a30f933eea12d4dfffd4951fa22102ef5f (diff) |
Set kernel arguments for AXPY as constant memory buffers, making it possible to transfer half-precision values as well
Diffstat (limited to 'src/kernels')
-rw-r--r-- | src/kernels/common.opencl | 7 | ||||
-rw-r--r-- | src/kernels/level1/xaxpy.opencl | 9 |
2 files changed, 5 insertions, 11 deletions
diff --git a/src/kernels/common.opencl b/src/kernels/common.opencl index df9ec35b..f0da5a47 100644 --- a/src/kernels/common.opencl +++ b/src/kernels/common.opencl @@ -100,13 +100,6 @@ R"( #define SMALLEST -1.0e37 #endif -// Kernel argument scalar -#if PRECISION == 16 - typedef float realarg; -#else - typedef real realarg; -#endif - // Single-element version of a complex number #if PRECISION == 3232 typedef float singlereal; diff --git a/src/kernels/level1/xaxpy.opencl b/src/kernels/level1/xaxpy.opencl index 58b7a196..e0efadc1 100644 --- a/src/kernels/level1/xaxpy.opencl +++ b/src/kernels/level1/xaxpy.opencl @@ -23,10 +23,10 @@ R"( // Full version of the kernel with offsets and strided accesses __attribute__((reqd_work_group_size(WGS, 1, 1))) -__kernel void Xaxpy(const int n, const realarg arg_alpha, +__kernel void Xaxpy(const int n, const __constant real* restrict arg_alpha, const __global real* restrict xgm, const int x_offset, const int x_inc, __global real* ygm, const int y_offset, const int y_inc) { - const real alpha = (real)arg_alpha; + const real alpha = arg_alpha[0]; // Loops over the work that needs to be done (allows for an arbitrary number of threads) #pragma unroll @@ -41,10 +41,11 @@ __kernel void Xaxpy(const int n, const realarg arg_alpha, // Faster version of the kernel without offsets and strided accesses. Also assumes that 'n' is // dividable by 'VW', 'WGS' and 'WPT'. __attribute__((reqd_work_group_size(WGS, 1, 1))) -__kernel void XaxpyFast(const int n, const realarg arg_alpha, +__kernel void XaxpyFast(const int n, const __constant real* restrict arg_alpha, const __global realV* restrict xgm, __global realV* ygm) { - const real alpha = (real)arg_alpha; + const real alpha = arg_alpha[0]; + #pragma unroll for (int w=0; w<WPT; ++w) { const int id = w*get_global_size(0) + get_global_id(0); |