diff options
Diffstat (limited to 'xmrstak/backend/amd/autoAdjust.hpp')
| -rw-r--r-- | xmrstak/backend/amd/autoAdjust.hpp | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/xmrstak/backend/amd/autoAdjust.hpp b/xmrstak/backend/amd/autoAdjust.hpp index ea057a0..685890b 100644 --- a/xmrstak/backend/amd/autoAdjust.hpp +++ b/xmrstak/backend/amd/autoAdjust.hpp @@ -83,11 +83,15 @@ private: constexpr size_t byteToMiB = 1024u * 1024u; - size_t hashMemSize = cn_select_memory(::jconf::inst()->GetMiningAlgo()); + size_t hashMemSize = std::max( + cn_select_memory(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo()), + cn_select_memory(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgoRoot()) + ); std::string conf; for(auto& ctx : devVec) { + size_t minFreeMem = 128u * byteToMiB; /* 1000 is a magic selected limit, the reason is that more than 2GiB memory * sowing down the memory performance because of TLB cache misses */ @@ -109,12 +113,26 @@ private: */ maxThreads = 2024u; } + + // NVIDIA optimizations + if( + ctx.isNVIDIA && ( + ctx.name.find("P100") != std::string::npos || + ctx.name.find("V100") != std::string::npos + ) + ) + { + // do not limit the number of threads + maxThreads = 40000u; + minFreeMem = 512u * byteToMiB; + } + // increase all intensity limits by two for aeon - if(::jconf::inst()->GetMiningAlgo() == cryptonight_lite) + if(::jconf::inst()->GetCurrentCoinSelection().GetDescription(1).GetMiningAlgo() == cryptonight_lite) maxThreads *= 2u; // keep 128MiB memory free (value is randomly chosen) - size_t availableMem = ctx.freeMem - (128u * byteToMiB); + size_t availableMem = ctx.freeMem - minFreeMem; // 224byte extra memory is used per thread for meta data size_t perThread = hashMemSize + 224u; size_t maxIntensity = availableMem / perThread; @@ -135,7 +153,7 @@ private: // set 8 threads per block (this is a good value for the most gpus) conf += std::string(" { \"index\" : ") + std::to_string(ctx.deviceIdx) + ",\n" + " \"intensity\" : " + std::to_string(intensity) + ", \"worksize\" : " + std::to_string(8) + ",\n" + - " \"affine_to_cpu\" : false, \"strided_index\" : 1, \"mem_chunk\" : 2,\n" + " \"affine_to_cpu\" : false, \"strided_index\" : " + (ctx.isNVIDIA ? "0" : "1") + ", \"mem_chunk\" : 2,\n" " \"comp_mode\" : true\n" + " },\n"; } @@ -148,11 +166,13 @@ private: configTpl.replace("PLATFORMINDEX",std::to_string(platformIndex)); configTpl.replace("GPUCONFIG",conf); configTpl.write(params::inst().configFileAMD); - printer::inst()->print_msg(L0, "AMD: GPU configuration stored in file '%s'", params::inst().configFileAMD.c_str()); + + const std::string backendName = xmrstak::params::inst().openCLVendor; + printer::inst()->print_msg(L0, "%s: GPU (OpenCL) configuration stored in file '%s'", backendName.c_str(), params::inst().configFileAMD.c_str()); } std::vector<GpuContext> devVec; }; } // namespace amd -} // namepsace xmrstak +} // namespace xmrstak |
