From 3743fdc534b39958c105f4124ad1130d3e8b042a Mon Sep 17 00:00:00 2001 From: Willem Jan Palenstijn Date: Tue, 16 Feb 2016 17:53:24 +0100 Subject: Query max texture size instead of hardcoding it --- cuda/3d/mem3d.cu | 19 +++++++++++++++++++ cuda/3d/mem3d.h | 1 + 2 files changed, 20 insertions(+) (limited to 'cuda') diff --git a/cuda/3d/mem3d.cu b/cuda/3d/mem3d.cu index 6d81dc0..0320117 100644 --- a/cuda/3d/mem3d.cu +++ b/cuda/3d/mem3d.cu @@ -62,6 +62,25 @@ size_t availableGPUMemory() return free; } +int maxBlockDimension() +{ + int dev; + cudaError_t err = cudaGetDevice(&dev); + if (err != cudaSuccess) { + ASTRA_WARN("Error querying device"); + return 0; + } + + cudaDeviceProp props; + err = cudaGetDeviceProperties(&props, dev); + if (err != cudaSuccess) { + ASTRA_WARN("Error querying device %d properties", dev); + return 0; + } + + return std::min(props.maxTexture3D[0], std::min(props.maxTexture3D[1], props.maxTexture3D[2])); +} + MemHandle3D allocateGPUMemory(unsigned int x, unsigned int y, unsigned int z, Mem3DZeroMode zero) { SMemHandle3D_internal hnd; diff --git a/cuda/3d/mem3d.h b/cuda/3d/mem3d.h index acb72cb..6fff80b 100644 --- a/cuda/3d/mem3d.h +++ b/cuda/3d/mem3d.h @@ -78,6 +78,7 @@ enum Mem3DZeroMode { }; size_t availableGPUMemory(); +int maxBlockDimension(); MemHandle3D allocateGPUMemory(unsigned int x, unsigned int y, unsigned int z, Mem3DZeroMode zero); -- cgit v1.2.3