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8c860aef0d
Reland of #137328, which was reverted due to reverting a dependent PR. Pull Request resolved: https://github.com/pytorch/pytorch/pull/137942 Approved by: https://github.com/eqy
77 lines
1.6 KiB
C++
77 lines
1.6 KiB
C++
// Copyright (c) Meta Platforms, Inc. and its affiliates.
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// All rights reserved.
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//
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree.
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#include <c10/util/env.h>
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#include <torch/csrc/distributed/c10d/debug.h>
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#include <algorithm>
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#include <cctype>
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#include <cstdlib>
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#include <string>
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#include <torch/csrc/distributed/c10d/exception.h>
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#include <torch/csrc/distributed/c10d/logging.h>
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namespace c10d {
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namespace detail {
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namespace {
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DebugLevel loadDebugLevelFromEnvironment() {
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auto env_value = c10::utils::get_env("TORCH_DISTRIBUTED_DEBUG");
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if (!env_value.has_value()) {
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return DebugLevel::Off;
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}
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DebugLevel level{};
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std::string level_str = std::move(env_value.value());
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std::transform(
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level_str.begin(),
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level_str.end(),
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level_str.begin(),
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[](unsigned char c) { return toupper(c); });
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if (level_str == "OFF") {
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level = DebugLevel::Off;
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} else if (level_str == "INFO") {
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level = DebugLevel::Info;
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} else if (level_str == "DETAIL") {
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level = DebugLevel::Detail;
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} else {
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throw std::invalid_argument(
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"The value of TORCH_DISTRIBUTED_DEBUG must be OFF, INFO, or DETAIL.");
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}
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C10D_INFO("The debug level is set to {}.", level_str);
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return level;
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}
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} // namespace
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} // namespace detail
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namespace {
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DebugLevel g_debug_level = DebugLevel::Off;
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} // namespace
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void setDebugLevel(DebugLevel level) {
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g_debug_level = level;
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}
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void setDebugLevelFromEnvironment() {
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g_debug_level = detail::loadDebugLevelFromEnvironment();
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}
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DebugLevel debug_level() noexcept {
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return g_debug_level;
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}
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} // namespace c10d
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