diff options
| author | Cedric Nugteren <web@cedricnugteren.nl> | 2020-05-10 20:28:23 +0200 |
|---|---|---|
| committer | Cedric Nugteren <web@cedricnugteren.nl> | 2020-05-10 20:28:23 +0200 |
| commit | 4a6c7c37a34692a77d2cdce770898ce4cf319295 (patch) | |
| tree | 26e531bdb69b750ebd43f7b13ecbad6e1680d278 /src | |
| parent | 69a4b4d4b08c425b7ede4747a04af39d539d0a7d (diff) | |
Made sure that the global workgroup size is a multiple of the local size in the tuners
Diffstat (limited to 'src')
| -rw-r--r-- | src/tuning/tuning.cpp | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/tuning/tuning.cpp b/src/tuning/tuning.cpp index 54ba33da..0fc6112a 100644 --- a/src/tuning/tuning.cpp +++ b/src/tuning/tuning.cpp @@ -220,8 +220,13 @@ void Tuner(int argc, char* argv[], const int V, } // Sets the thread configuration - const auto global = settings.global_size_ref; - const auto local = settings.local_size_ref; + auto global = settings.global_size_ref; + auto local = settings.local_size_ref; + + // Make sure that the global worksize is a multiple of the local + for (auto i=size_t{0}; i<global.size(); ++i) { + while ((global[i] / local[i]) * local[i] != global[i]) { global[i]++; } + } printf("%5zu %5zu | %5zu %5zu |", local[0], local[1], global[0], global[1]); // Compiles the kernel @@ -269,10 +274,15 @@ void Tuner(int argc, char* argv[], const int V, } // Sets the thread configuration - const auto global = SetThreadConfiguration(configuration, settings.global_size, - settings.mul_global, settings.div_global); - const auto local = SetThreadConfiguration(configuration, settings.local_size, - settings.mul_local, settings.div_local); + auto global = SetThreadConfiguration(configuration, settings.global_size, + settings.mul_global, settings.div_global); + auto local = SetThreadConfiguration(configuration, settings.local_size, + settings.mul_local, settings.div_local); + + // Make sure that the global worksize is a multiple of the local + for (auto i=size_t{0}; i<global.size(); ++i) { + while ((global[i] / local[i]) * local[i] != global[i]) { global[i]++; } + } printf("%5zu %5zu | %5zu %5zu |", local[0], local[1], global[0], global[1]); // Sets the parameters for this configuration |