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#pragma once
#include <c10/util/Registry.h>
#include <string>
namespace torch::distributed::rpc {
// All metrics are prefixed with the following key.
// NOLINTNEXTLINE(cppcoreguidelines-avoid-c-arrays,modernize-avoid-c-arrays)
constexpr char kRpcMetricsKeyPrefix[] = "torch.distributed.rpc.";
// APIs for logging time-series metrics for RPC-based distributed
// training. Implementations of this class should provide thread safety so that
// metrics can be logged from multiple threads without the user needing to
// coordinate serialization.
class RpcMetricsHandler {
public:
// Accumulates the metric value specified by the name for purposes of
// computing aggregate statistics over time.
virtual void accumulateMetric(const std::string& name, double value) = 0;
// Increment a count for the metric given by the name.
virtual void incrementMetric(const std::string& name) = 0;
virtual ~RpcMetricsHandler() = default;
};
// Configuration struct for metrics handling.
struct RpcMetricsConfig {
explicit RpcMetricsConfig(std::string handlerName, bool enabled)
: handlerName_(std::move(handlerName)), enabled_(enabled) {}
// Handler name
std::string handlerName_;
// Whether metrics exporting should be enabled or not.
bool enabled_;
};
// A registry for different implementations of RpcMetricsHandler. Classes
// implementing the above interface should use this to register implementations.
TORCH_DECLARE_REGISTRY(
RpcMetricsHandlerRegistry,
torch::distributed::rpc::RpcMetricsHandler);
} // namespace torch::distributed::rpc
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