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SyTen
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SyTen
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Support functions for CUDA-based GPUs. More...
Include dependency graph for cuda_support.h: This graph shows which files directly or indirectly include this file:Classes | |
| class | syten::Cuda::CudaPtr< T > |
| Implementation for syten::CudaPtr. More... | |
| class | syten::Cuda::CudaStream |
| Implementation for syten::CudaStream. More... | |
Namespaces | |
| syten | |
| Syten namespace. | |
| syten::Cuda | |
| Support functions (memory allocation etc.) for CUDA-based GPUs. | |
Typedefs | |
| template<typename T > | |
| using | syten::CudaPtr = Cuda::CudaPtr< T > |
| A pointer to a CUDA-allocated region (if SYTEN_USE_CUDA is true) or a host-allocated memory area which knows its CUDA device. More... | |
| using | syten::CudaStream = Cuda::CudaStream |
| Represents a CUDA stream. More... | |
Functions | |
| std::uint16_t | syten::Cuda::allocator_get_max_size () |
| Returns the log2 of the maximal block size of the CUDA allocator. More... | |
| std::uint16_t | syten::Cuda::allocator_get_min_size () |
| Returns the log2 of the minimal block size of the CUDA allocator. More... | |
| void | syten::Cuda::allocator_print_status () |
| Prints the status of the CUDA allocator. More... | |
| std::uint16_t | syten::Cuda::allocator_set_max_size (std::uint16_t sz) |
| Sets the log2 of the maximal block size of the CUDA allocator. More... | |
| std::uint16_t | syten::Cuda::allocator_set_min_size (std::uint16_t sz) |
| Sets the log2 of the minimal block size of the CUDA allocator. More... | |
| bool | syten::Cuda::cuda_compiled () |
| Returns true if CUDA support is compiled in. More... | |
| bool | syten::Cuda::cuda_enabled () |
| Returns true if the list of allowed devices is not empty. More... | |
| std::string | syten::Cuda::version () |
| Returns a version string describing the current CUDA version/compilation/enablement. More... | |
Allowed devices and allocation logic | |
| std::int16_t | syten::Cuda::get_alloc_device () |
| Returns the device ID of the next allocation device to use. More... | |
| Vec< std::int16_t > const & | syten::Cuda::get_allowed_devices () |
| Returns a list of allowed devices. More... | |
| void | syten::Cuda::setup () |
| Sets up CUDA to allow all existing devices and generates the associated cuBLAS handles for the calling thread. More... | |
| void | syten::Cuda::setup ([[maybe_unused]] Vec< std::int16_t > const &devices) |
| Sets up CUDA to allow the specified devices and generates the associated cuBLAS handles for the calling thread. More... | |
Memory management functions. | |
| CudaPtr< void > | syten::Cuda::alloc (std::size_t sz) |
Allocates sz bytes on the next CUDA allocation device. More... | |
| CudaPtr< void > | syten::Cuda::alloc_on_device (std::size_t sz,[[maybe_unused]] std::int16_t device) |
Allocates sz bytes on the specified CUDA allocation device. More... | |
| template<typename T > | |
| void | syten::Cuda::free (CudaPtr< T > ptr) |
Frees the allocation pointed to by ptr. More... | |
| void | syten::Cuda::free (CudaPtr< void > ptr) |
Frees the allocation pointed to by ptr. More... | |
| template<typename T > | |
| std::int16_t | syten::Cuda::host_device ([[maybe_unused]] CudaPtr< T > v) |
Returns the device hosting the allocation pointed to by v. More... | |
Copying objects and arrays. | |
| template<typename T > | |
| void | syten::Cuda::copy (const T *src, CudaPtr< T > dst, std::size_t num) |
Copies num objects of type T from src to dst. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (const T *src, CudaPtr< T > dst, std::size_t num, [[maybe_unused]] CudaStream const &str) |
Copies num objects of type T from src to dst within stream str. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (const T *src, T *dst, std::size_t num) |
Copies num objects of type T from src to dst. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (const T *src, T *dst, std::size_t num, [[maybe_unused]] CudaStream const &str) |
Copies num objects of type T from src to dst within stream str. More... | |
| void | syten::Cuda::copy (CudaPtr< const char > src, CudaPtr< char > dst, std::size_t num) |
Copies num bytes from src to dst. More... | |
| void | syten::Cuda::copy (CudaPtr< const char > src, CudaPtr< char > dst, std::size_t num,[[maybe_unused]] CudaStream const &str) |
Copies num bytes from src to dst within stream str. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (CudaPtr< const typename IdentityType< T >::type > src, CudaPtr< T > dst, std::size_t num) |
Copies num objects of type T from src to dst. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (CudaPtr< const typename IdentityType< T >::type > src, CudaPtr< T > dst, std::size_t num, [[maybe_unused]] CudaStream const &str) |
Copies num objects of type T from src to dst within stream str. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (CudaPtr< const typename IdentityType< T >::type > src, T *dst, std::size_t num) |
Copies num objects of type T from src to dst. More... | |
| template<typename T > | |
| void | syten::Cuda::copy (CudaPtr< const typename IdentityType< T >::type > src, T *dst, std::size_t num, [[maybe_unused]] CudaStream const &str) |
Copies num objects of type T from src to dst within stream str. More... | |
Device management and synchronisation. | |
| Pair< Size, Size > | syten::Cuda::mem_status () |
| Returns a pair of free and total device memory. More... | |
| void | syten::Cuda::select_device ([[maybe_unused]] std::int16_t device) |
| Selects the specified device for the current thread. More... | |
| void | syten::Cuda::synchronise () |
| Synchronizes with the current device. More... | |
Support functions for CUDA-based GPUs.
1.9.1