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construct/include/ircd/gpt/task/epic.h

38 lines
1.3 KiB
C

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2021 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_GPT_TASK_EPIC_H
/// Epoch Precision Interrupt Controller
///
struct ircd_gpt_task_epic
{
/// Accumulates the number of task cycles. The cycle counter is incremented
/// by device software after each repetition of the kernel pipeline to
/// produce one additional token.
ulong cycle;
/// Accumulates the epoch count for the task. The counter is incremented
/// by one in device software before control returns back to the host.
/// Several cycles may occur during each epoch.
ulong epoch;
/// Accumulates the training epoch count for the task. The counter is
/// incremented by one in device software for each backward propagation.
ulong step;
/// Updated by the host with the value of the timestamp register as sampled
/// immediately before each transfer of control to the device.
ulong host_tsc;
/// Accumulates time in microseconds elapsed for the task.
ulong elapsed;
};