Files
rocm-systems/src/reverse_offload/context_proxy.hpp
T
Avinash Kethineedi 867519e1d0 Implement default RO context (#64)
* Allocate default context buffers and initialize queue for management

- Allocated the status flag, g return, and atomic return buffers for
  the default context.
- Initialized `AtomicWFQueueProxy` instances to manage these buffers
  efficiently for concurrent access.

* Update `BlockHandle` with default context buffers

* Add default context flag and update buffer retrieval functions

- Added a flag to distinguish the default context from other contexts.
- Modified return buffer functionns and `get_status_flag` function to accommodate
  the default context

* Add default context primitive tests

-  get, put, get_nbi, put_nbi, g, and p APIs.
2025-03-25 18:51:54 -05:00

94 строки
3.1 KiB
C++

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#ifndef LIBRARY_SRC_REVERSE_OFFLOAD_CONTEXT_PROXY_HPP_
#define LIBRARY_SRC_REVERSE_OFFLOAD_CONTEXT_PROXY_HPP_
#include "rocshmem/rocshmem.hpp"
#include "../device_proxy.hpp"
#include "../memory/hip_allocator.hpp"
#include "context_ro_device.hpp"
namespace rocshmem {
class ROBackend;
template <typename ALLOCATOR>
class DefaultContextProxy {
using ProxyT = DeviceProxy<ALLOCATOR, ROContext>;
public:
DefaultContextProxy() = default;
/*
* Placement new the memory which is allocated by proxy_
*/
explicit DefaultContextProxy(ROBackend* backend, TeamInfo *tinfo,
size_t num_elems = 1)
: constructed_{true}, proxy_{num_elems} {
auto ctx{proxy_.get()};
new (ctx) ROContext(reinterpret_cast<Backend*>(backend), -1, true);
rocshmem_ctx_t local{ctx, tinfo};
set_internal_ctx(&local);
}
/*
* Since placement new is called in the constructor, then
* delete must be called manually.
*/
~DefaultContextProxy() {
if (constructed_) {
proxy_.get()->~ROContext();
}
}
DefaultContextProxy(const DefaultContextProxy& other) = delete;
DefaultContextProxy& operator=(const DefaultContextProxy& other) = delete;
DefaultContextProxy(DefaultContextProxy&& other) = default;
DefaultContextProxy& operator=(DefaultContextProxy&& other) = default;
/*
* @brief Provide access to the memory referenced by the proxy
*/
__host__ __device__ Context* get() { return proxy_.get(); }
private:
/*
* @brief Memory managed by the lifetime of this object
*/
ProxyT proxy_{};
/*
* @brief denotes if an objects was constructed in proxy
*/
bool constructed_{false};
};
using DefaultContextProxyT = DefaultContextProxy<HIPAllocator>;
} // namespace rocshmem
#endif // LIBRARY_SRC_REVERSE_OFFLOAD_CONTEXT_PROXY_HPP_