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#include <torch/csrc/distributed/c10d/GlooDeviceFactory.hpp>
#ifdef USE_C10D_GLOO
#include <stdlib.h>
#include <c10/util/Exception.h>
#if GLOO_HAVE_TRANSPORT_TCP
#include <gloo/transport/tcp/device.h>
#endif
#if GLOO_HAVE_TRANSPORT_TCP_TLS
#include <gloo/transport/tcp/tls/device.h>
#endif
#if GLOO_HAVE_TRANSPORT_UV
#include <gloo/transport/uv/device.h>
#endif
// On Linux, check that the tcp transport is available.
#ifdef __linux__
#if !GLOO_HAVE_TRANSPORT_TCP
#error "Expected the tcp transport to be available on Linux."
#endif
#endif
// On macOS, check that the uv transport is available.
#ifdef __APPLE__
#if !GLOO_HAVE_TRANSPORT_UV
#error "Expected the uv transport to be available on macOS."
#endif
#endif
namespace c10d {
C10_DEFINE_SHARED_REGISTRY_WITHOUT_WARNING(
GlooDeviceRegistry,
::gloo::transport::Device,
const std::string& /* interface */,
const std::string& /* hostname */);
#if GLOO_HAVE_TRANSPORT_TCP
static std::shared_ptr<::gloo::transport::Device> makeTCPDevice(
const std::string& interfaceName,
const std::string& hostname) {
TORCH_CHECK(
!interfaceName.empty() || !hostname.empty(),
"GlooDeviceFactory::makeTCPDevice(): interface or hostname "
"can't be empty");
::gloo::transport::tcp::attr attr;
if (!interfaceName.empty()) {
attr.iface = interfaceName;
} else {
attr.hostname = hostname;
}
return ::gloo::transport::tcp::CreateDevice(attr);
}
// Registry priority is per key identifier. We register TCP to `LINUX` for
// the flexibility of other application to override by priority. Register
// TCP to `TCP` for env "GLOO_DEVICE_TRANSPORT" override.
C10_REGISTER_CREATOR(GlooDeviceRegistry, LINUX, makeTCPDevice);
C10_REGISTER_CREATOR(GlooDeviceRegistry, TCP, makeTCPDevice);
#endif
#if GLOO_HAVE_TRANSPORT_TCP_TLS
static std::string cstr_to_std_string(const char* chars) {
return std::string(chars != nullptr ? chars : "");
}
static std::shared_ptr<::gloo::transport::Device> makeTCPTLSDevice(
const std::string& interface,
const std::string& hostname) {
TORCH_CHECK(
!interface.empty() || !hostname.empty(),
"GlooDeviceFactory::makeTCPTLSDevice(): interface or hostname "
"can't be empty");
::gloo::transport::tcp::attr attr;
if (!interface.empty()) {
attr.iface = interface;
} else {
attr.hostname = hostname;
}
const auto pkey =
cstr_to_std_string(std::getenv("GLOO_DEVICE_TRANSPORT_TCP_TLS_PKEY"));
const auto cert =
cstr_to_std_string(std::getenv("GLOO_DEVICE_TRANSPORT_TCP_TLS_CERT"));
const auto caFile =
cstr_to_std_string(std::getenv("GLOO_DEVICE_TRANSPORT_TCP_TLS_CA_FILE"));
const auto caPath =
cstr_to_std_string(std::getenv("GLOO_DEVICE_TRANSPORT_TCP_TLS_CA_PATH"));
return ::gloo::transport::tcp::tls::CreateDevice(
attr, pkey, cert, caFile, caPath);
}
C10_REGISTER_CREATOR(GlooDeviceRegistry, TCP_TLS, makeTCPTLSDevice);
#endif
#if GLOO_HAVE_TRANSPORT_UV
static std::shared_ptr<::gloo::transport::Device> makeUVDevice(
const std::string& interfaceName,
const std::string& hostname) {
TORCH_CHECK(
!interfaceName.empty() || !hostname.empty(),
"GlooDeviceFactory::makeUVDevice(): interface or hostname "
"can't be empty");
::gloo::transport::uv::attr attr;
if (!interfaceName.empty()) {
attr.iface = interfaceName;
} else {
attr.hostname = hostname;
}
return ::gloo::transport::uv::CreateDevice(attr);
}
// Registry priority is per key identifier. We register UV to `APPLE` for
// the flexibility of other application to override by priority. Register
// UV to `UV` for env "GLOO_DEVICE_TRANSPORT" override.
C10_REGISTER_CREATOR(GlooDeviceRegistry, APPLE, makeUVDevice);
C10_REGISTER_CREATOR(GlooDeviceRegistry, WIN32, makeUVDevice);
C10_REGISTER_CREATOR(GlooDeviceRegistry, UV, makeUVDevice);
#endif
namespace {
std::shared_ptr<::gloo::transport::Device> makeGlooDevice(
const std::string& interfaceName,
const std::string& hostName) {
static auto transportName = getenv("GLOO_DEVICE_TRANSPORT");
if (transportName) {
return GlooDeviceRegistry()->Create(transportName, interfaceName, hostName);
}
#ifdef __linux__
return GlooDeviceRegistry()->Create("LINUX", interfaceName, hostName);
#endif
#ifdef __APPLE__
return GlooDeviceRegistry()->Create("APPLE", interfaceName, hostName);
#endif
#ifdef _WIN32
return GlooDeviceRegistry()->Create("WIN32", interfaceName, hostName);
#endif
return nullptr;
}
} // anonymous namespace
std::shared_ptr<::gloo::transport::Device> GlooDeviceFactory::
makeDeviceForInterface(const std::string& interfaceName) {
auto device = makeGlooDevice(interfaceName, "");
if (!device) {
TORCH_CHECK(false, "makeDeviceForInterface(): unsupported gloo device");
}
return device;
}
std::shared_ptr<::gloo::transport::Device> GlooDeviceFactory::
makeDeviceForHostname(const std::string& hostname) {
auto device = makeGlooDevice("", hostname);
if (!device) {
TORCH_CHECK(false, "makeDeviceForHostname(): unsupported gloo device");
}
return device;
}
} // namespace c10d
#endif // USE_C10D_GLOO
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