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net_test.cc
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#include <gtest/gtest.h>
#include "c10/util/StringUtil.h"
#include "caffe2/core/net.h"
#include "caffe2/core/net_async_scheduling.h"
#include "caffe2/core/operator.h"
#include "caffe2/core/scope_guard.h"
#include <google/protobuf/text_format.h>
namespace caffe2 {
namespace {
static std::atomic<int> counter;
// A net test dummy op that does nothing but scaffolding. Here, we
// inherit from OperatorBase because we instantiate on both CPU and
// GPU. In general, you want to only inherit from Operator<Context>.
class NetTestDummyOp final : public OperatorBase {
public:
using OperatorBase::OperatorBase;
NetTestDummyOp(const OperatorDef& operator_def, Workspace* ws)
: OperatorBase(operator_def, ws),
fail_(OperatorBase::GetSingleArgument<bool>("fail", false)) {}
bool Run(int /* unused */ /*stream_id*/) override {
if (fail_) {
return false;
}
counter.fetch_add(1);
return true;
}
// Simulate CUDA operator behavior
bool HasAsyncPart() const override {
return debug_def().device_option().device_type() == PROTO_CUDA;
}
bool SupportsAsyncScheduling() const override {
return debug_def().device_option().device_type() == PROTO_CUDA;
}
protected:
const bool fail_;
};
REGISTER_CPU_OPERATOR(NetTestDummy, NetTestDummyOp);
REGISTER_CUDA_OPERATOR(NetTestDummy, NetTestDummyOp);
REGISTER_CPU_OPERATOR(NetTestDummy2, NetTestDummyOp);
REGISTER_CUDA_OPERATOR(NetTestDummy2, NetTestDummyOp);
OPERATOR_SCHEMA(NetTestDummy)
.NumInputs(0, INT_MAX)
.NumOutputs(0, INT_MAX)
.AllowInplace({{0, 0}, {1, 1}});
OPERATOR_SCHEMA(NetTestDummy2)
.NumInputs(0, INT_MAX)
.NumOutputs(0, INT_MAX)
.AllowInplace({{1, 0}});
unique_ptr<NetBase> CreateNetTestHelper(
Workspace* ws,
const vector<string>& input,
const vector<string>& output) {
NetDef net_def;
{
auto& op = *(net_def.add_op());
op.set_type("NetTestDummy");
op.add_input("in");
op.add_output("hidden");
}
{
auto& op = *(net_def.add_op());
op.set_type("NetTestDummy");
op.add_input("hidden");
op.add_output("out");
}
for (const auto& name : input) {
net_def.add_external_input(name);
}
for (const auto& name : output) {
net_def.add_external_output(name);
}
return CreateNet(net_def, ws);
}
} // namespace
TEST(NetTest, ConstructionNoDeclaredInputOutput) {
Workspace ws;
ws.CreateBlob("in");
unique_ptr<NetBase> net(
CreateNetTestHelper(&ws, vector<string>(), vector<string>()));
EXPECT_TRUE(net.get() != nullptr);
}
TEST(NetTest, ConstructionDeclaredInput) {
Workspace ws;
ws.CreateBlob("in");
unique_ptr<NetBase> net(
CreateNetTestHelper(&ws, vector<string>{"in"}, vector<string>()));
EXPECT_TRUE(net.get() != nullptr);
}
TEST(NetTest, ConstructionDeclaredOutput) {
Workspace ws;
ws.CreateBlob("in");
unique_ptr<NetBase> net(
CreateNetTestHelper(&ws, vector<string>(), vector<string>{"out"}));
EXPECT_TRUE(net.get() != nullptr);
}
TEST(NetTest, DeclaredInputInsufficient) {
Workspace ws;
ws.CreateBlob("in");
ASSERT_THROW(
CreateNetTestHelper(&ws, vector<string>{"unuseful_in"}, vector<string>()),
EnforceNotMet);
}
TEST(NetDeathTest, DeclaredOutputNotMet) {
Workspace ws;
ws.CreateBlob("in");
ASSERT_THROW(
CreateNetTestHelper(
&ws, vector<string>(), vector<string>{"unproduced_out"}),
EnforceNotMet);
}
void testExecution(std::unique_ptr<NetBase>& net, int num_ops) {
// Run 100 times
for (int i = 0; i < 100; i++) {
counter.exchange(0);
net.get()->Run();
ASSERT_EQ(num_ops, counter.load());
}
}
void checkChainingAndRun(
const char* spec,
const dag_utils::ExecutionChains& expected) {
Workspace ws;
ws.CreateBlob("in");
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
net_def.set_num_workers(4);
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
auto* dag = dynamic_cast_if_rtti<AsyncNetBase*>(net.get());
CHECK_NOTNULL(dag);
const auto& chains = dag->TEST_execution_chains();
EXPECT_TRUE(chains == expected);
testExecution(net, net_def.op().size());
}
}
void checkNumChainsAndRun(const char* spec, const int expected_num_chains) {
Workspace ws;
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
net_def.set_num_workers(4);
// Create all external inputs
for (auto inp : net_def.external_input()) {
ws.CreateBlob(inp);
}
{
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
auto* dag = dynamic_cast_if_rtti<AsyncNetBase*>(net.get());
CHECK_NOTNULL(dag);
const auto& chains = dag->TEST_execution_chains();
EXPECT_EQ(expected_num_chains, chains.size());
testExecution(net, net_def.op().size());
}
}
TEST(NetTest, DISABLED_ChainingForLinearModel) {
const auto spec = R"DOC(
name: "example"
type: "dag"
external_input: "in"
op {
input: "in"
output: "hidden"
type: "NetTestDummy"
}
op {
input: "hidden"
output: "out"
type: "NetTestDummy"
}
)DOC";
checkChainingAndRun(spec, {{0, {0, 1}}});
}
TEST(NetTest, DISABLED_ChainingForFork) {
const auto spec = R"DOC(
name: "example"
type: "dag"
external_input: "in"
op {
input: "in"
output: "hidden"
type: "NetTestDummy"
}
op {
input: "hidden"
output: "out1"
type: "NetTestDummy"
}
op {
input: "hidden"
output: "out2"
type: "NetTestDummy"
}
)DOC";
checkChainingAndRun(spec, {{0, {0}}, {1, {1}}, {2, {2}}});
}
// TEST(NetTest, ChainingForJoinWithAncestor) {
// const auto spec = R"DOC(
// name: "example"
// type: "dag"
// external_input: "in"
// op {
// input: "in"
// output: "hidden"
// type: "NetTestDummy"
// }
// op {
// input: "hidden"
// output: "out1"
// type: "NetTestDummy"
// }
// op {
// input: "hidden"
// output: "out2"
// type: "NetTestDummy"
// }
// op {
// input: "hidden"
// input: "out2"
// type: "NetTestDummy"
// }
// )DOC";
// checkChainingAndRun(spec, {{0, {0}}, {1, {1}}, {2, {2, 3}}});
// }
TEST(NetTest, DISABLED_ChainingForForkJoin) {
const auto spec = R"DOC(
name: "example"
type: "dag"
external_input: "in"
op {
input: "in"
output: "hidden1"
type: "NetTestDummy"
}
op {
input: "in"
output: "hidden2"
type: "NetTestDummy"
}
op {
input: "hidden1"
input: "hidden2"
output: "out"
type: "NetTestDummy"
}
op {
input: "out"
output: "out2"
type: "NetTestDummy"
}
)DOC";
checkChainingAndRun(spec, {{0, {0}}, {1, {1}}, {2, {2, 3}}});
}
TEST(NetTest, DISABLED_ChainingForwardBackward) {
const auto spec = R"DOC(
name: "gpu_0"
type: "dag"
op {
input: "in"
input: "fc_0_w"
input: "fc_0_b"
output: "fc_0"
name: "0"
type: "NetTestDummy"
}
op {
input: "fc_0"
output: "fc_0"
name: "1"
type: "NetTestDummy"
}
op {
input: "fc_0"
input: "fc_1_w"
input: "fc_1_b"
output: "fc_1"
name: "2"
type: "NetTestDummy"
}
op {
input: "fc_1"
output: "fc_1"
name: "3"
type: "NetTestDummy"
}
op {
input: "fc_1"
input: "fc_2_w"
input: "fc_2_b"
output: "fc_2"
name: "4"
type: "NetTestDummy"
}
op {
input: "fc_2"
output: "fc_2"
name: "5"
type: "NetTestDummy"
}
op {
input: "fc_2"
input: "fc_3_w"
input: "fc_3_b"
output: "fc_3"
name: "6"
type: "NetTestDummy"
}
op {
input: "fc_3"
output: "fc_3"
name: "7"
type: "NetTestDummy"
}
op {
input: "fc_3"
input: "fc_4_w"
input: "fc_4_b"
output: "fc_4"
name: "8"
type: "NetTestDummy"
}
op {
input: "fc_4"
output: "fc_4"
name: "9"
type: "NetTestDummy"
}
op {
input: "fc_4"
input: "in2"
output: "LabelCrossEntropy"
name: "10"
type: "NetTestDummy"
}
op {
input: "LabelCrossEntropy"
output: "AveragedLoss"
name: "11"
type: "NetTestDummy"
}
op {
input: "AveragedLoss"
output: "AveragedLoss_autogen_grad"
name: "12"
type: "NetTestDummy"
}
op {
input: "LabelCrossEntropy"
input: "AveragedLoss_autogen_grad"
output: "LabelCrossEntropy_grad"
name: "13"
type: "NetTestDummy"
}
op {
input: "fc_4"
input: "label"
input: "LabelCrossEntropy_grad"
output: "fc_4_grad"
name: "14"
type: "NetTestDummy2"
}
op {
input: "fc_4"
input: "fc_4_grad"
output: "fc_4_grad"
name: "15"
type: "NetTestDummy2"
}
op {
input: "fc_3"
input: "fc_4_w"
input: "fc_4_grad"
output: "fc_4_w_grad"
output: "fc_4_b_grad"
output: "fc_3_grad"
name: "16"
type: "NetTestDummy"
}
op {
input: "fc_3"
input: "fc_3_grad"
output: "fc_3_grad"
name: "17"
type: "NetTestDummy2"
}
op {
input: "fc_2"
input: "fc_3_w"
input: "fc_3_grad"
output: "fc_3_w_grad"
output: "fc_3_b_grad"
output: "fc_2_grad"
name: "18"
type: "NetTestDummy"
}
op {
input: "fc_2"
input: "fc_2_grad"
output: "fc_2_grad"
name: "19"
type: "NetTestDummy2"
}
op {
input: "fc_1"
input: "fc_2_w"
input: "fc_2_grad"
output: "fc_2_w_grad"
output: "fc_2_b_grad"
output: "fc_1_grad"
name: "20"
type: "NetTestDummy"
}
op {
input: "fc_1"
input: "fc_1_grad"
output: "fc_1_grad"
name: "21"
type: "NetTestDummy2"
}
op {
input: "fc_0"
input: "fc_1_w"
input: "fc_1_grad"
output: "fc_1_w_grad"
output: "fc_1_b_grad"
output: "fc_0_grad"
name: "22"
type: "NetTestDummy"
}
op {
input: "fc_0"
input: "fc_0_grad"
output: "fc_0_grad"
name: "23"
type: "NetTestDummy2"
}
op {
input: "in"
input: "fc_0_w"
input: "fc_0_grad"
output: "fc_0_w_grad"
output: "fc_0_b_grad"
output: "data_grad"
name: "24"
type: "NetTestDummy"
}
external_input: "in"
external_input: "in2"
external_input: "LR"
external_input: "fc_0_w"
external_input: "fc_0_b"
external_input: "fc_1_w"
external_input: "fc_1_b"
external_input: "fc_2_w"
external_input: "fc_2_b"
external_input: "fc_3_w"
external_input: "fc_3_b"
external_input: "fc_4_w"
external_input: "fc_4_b"
external_input: "label"
)DOC";
checkNumChainsAndRun(spec, 1);
}
TEST(NetTest, DISABLED_ChainingForHogwildModel) {
const auto spec = R"DOC(
name: "example"
type: "dag"
external_input: "in"
op {
input: "in"
output: "hidden1"
type: "NetTestDummy"
}
op {
input: "hidden1"
output: "mid1"
type: "NetTestDummy"
}
op {
input: "mid1"
output: "out1"
type: "NetTestDummy"
}
op {
input: "in"
output: "hidden2"
type: "NetTestDummy"
}
op {
input: "hidden2"
output: "mid2"
type: "NetTestDummy"
}
op {
input: "mid2"
output: "out2"
type: "NetTestDummy"
}
)DOC";
checkNumChainsAndRun(spec, 2);
}
TEST(NetTest, DISABLED_FailingOperator) {
const auto spec = R"DOC(
name: "example"
type: "dag"
external_input: "in"
op {
input: "in"
output: "hidden"
type: "NetTestDummy"
}
op {
input: "hidden"
output: "out"
type: "NetTestDummy"
arg {
name: "fail"
i: 1
}
}
)DOC";
Workspace ws;
ws.CreateBlob("in");
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
net_def.set_num_workers(4);
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
for (int i = 0; i < 10; i++) {
counter.exchange(0);
bool run_result = false;
try {
run_result = net->Run();
} catch (const std::exception&) {
// async_scheduling would throw
}
ASSERT_FALSE(run_result);
ASSERT_EQ(1, counter.load());
}
}
}
const int kTestPoolSize = 4;
class ExecutorHelperDummyOp final : public OperatorBase {
public:
using OperatorBase::OperatorBase;
ExecutorHelperDummyOp(const OperatorDef& operator_def, Workspace* ws)
: OperatorBase(operator_def, ws) {}
bool Run(int /* unused */ /*stream_id*/) override {
auto helper = GetExecutorHelper();
CAFFE_ENFORCE(helper);
auto pool = helper->GetPool(device_option());
CAFFE_ENFORCE(pool);
auto pool_size = pool->size();
CAFFE_ENFORCE_EQ(pool_size, kTestPoolSize);
return true;
}
};
REGISTER_CPU_OPERATOR(ExecutorHelperDummy, ExecutorHelperDummyOp);
OPERATOR_SCHEMA(ExecutorHelperDummy);
TEST(NetTest, OperatorWithExecutorHelper) {
const auto spec = R"DOC(
name: "example"
type: "async_scheduling"
op {
type: "ExecutorHelperDummy"
}
)DOC";
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
Workspace ws;
net_def.set_num_workers(kTestPoolSize);
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
ASSERT_TRUE(net->Run());
}
TEST(NetTest, DISABLED_OperatorWithDisabledEvent) {
const auto spec = R"DOC(
name: "example"
type: "async_scheduling"
external_input: "in"
op {
input: "in"
output: "out"
type: "NetTestDummy"
arg {
name: "fail"
i: 1
}
}
)DOC";
Workspace ws;
ws.CreateBlob("in");
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
net->GetOperators()[0]->DisableEvent();
// async_scheduling propagates exception
bool caught_exception = false;
try {
net->Run();
} catch (const std::exception& e) {
caught_exception = true;
}
ASSERT_TRUE(caught_exception);
}
}
TEST(NetTest, ExecutorOverride) {
const auto spec = R"DOC(
name: "example"
type: "dag"
)DOC";
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
Workspace ws;
auto old = FLAGS_caffe2_override_executor;
auto g = MakeGuard([&]() { FLAGS_caffe2_override_executor = old; });
FLAGS_caffe2_override_executor = "dag,async_scheduling";
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
auto async_net =
caffe2::dynamic_cast_if_rtti<AsyncSchedulingNet*>(net.get());
ASSERT_TRUE(async_net != nullptr);
}
}
TEST(NetTest, AsyncEmptyNet) {
const auto spec = R"DOC(
name: "example"
type: "async_scheduling"
)DOC";
Workspace ws;
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
bool caught_exception = false;
try {
ASSERT_TRUE(net->Run());
} catch (const std::exception& e) {
caught_exception = true;
}
ASSERT_FALSE(caught_exception);
}
}
TEST(NetTest, DISABLED_RunAsyncFailure) {
const auto spec = R"DOC(
name: "example"
type: "async_scheduling"
op {
input: "in"
output: "out"
type: "NetTestDummy"
arg {
name: "fail"
i: 1
}
}
)DOC";
Workspace ws;
ws.CreateBlob("in");
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
bool caught_exception = false;
try {
ASSERT_FALSE(net->Run());
} catch (const std::exception& e) {
caught_exception = true;
}
ASSERT_TRUE(caught_exception);
}
}
TEST(NetTest, NoTypeNet) {
const auto spec = R"DOC(
name: "no_type_net"
)DOC";
Workspace ws;
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
{
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
ASSERT_TRUE(net);
}
}
class NotFinishingOp final : public Operator<CPUContext> {
public:
NotFinishingOp(const OperatorDef& operator_def, Workspace* ws)
: Operator<CPUContext>(operator_def, ws) {}
bool RunOnDevice() override {
// never calls SetFinished
return true;
}
bool HasAsyncPart() const override {
return true;
}
};
REGISTER_CPU_OPERATOR(NotFinishingOp, NotFinishingOp);
OPERATOR_SCHEMA(NotFinishingOp);
TEST(NetTest, PendingOpsAndNetFailure) {
const auto spec = R"DOC(
name: "example"
type: "async_scheduling"
op {
type: "NotFinishingOp"
}
op {
type: "NetTestDummy"
arg {
name: "fail"
i: 1
}
}
)DOC";
NetDef net_def;
CAFFE_ENFORCE(
TextFormat::ParseFromString(spec, &net_def));
Workspace ws;
std::unique_ptr<NetBase> net(CreateNet(net_def, &ws));
// net is not stuck and returns false
ASSERT_FALSE(net->Run());
}
class AsyncErrorOp final : public Operator<CPUContext> {
public:
AsyncErrorOp(const OperatorDef& operator_def, Workspace* ws)
: Operator<CPUContext>(operator_def, ws),
throw_(OperatorBase::GetSingleArgument<bool>("throw", false)),
fail_in_sync_(
OperatorBase::GetSingleArgument<bool>("fail_in_sync", false)),
sleep_time_s_(OperatorBase::GetSingleArgument<int>("sleep_time", 1)),
error_msg_(OperatorBase::GetSingleArgument<std::string>(
"error_msg",
"Error")) {}
bool RunOnDevice() override {
if (fail_in_sync_) {
if (throw_) {
throw std::logic_error(error_msg_);
} else {
return false;
}
} else {
if (thread_) {
thread_->join();
}
thread_ = std::make_unique<std::thread>([this]() {
try {
std::this_thread::sleep_for(std::chrono::seconds(sleep_time_s_));
if (throw_) {
throw std::logic_error(error_msg_);
} else {
if (!cancel_.test_and_set()) {
event().SetFinished(error_msg_.c_str());
}
}
} catch (...) {
if (!cancel_.test_and_set()) {
event().SetFinishedWithException(error_msg_.c_str());
}
}
});
return true;
}
}
bool HasAsyncPart() const override {
return true;
}
void CancelAsyncCallback() override {
cancel_.test_and_set();
}
~AsyncErrorOp() override {
if (thread_) {
thread_->join();
}
}
private:
std::unique_ptr<std::thread> thread_;
bool throw_;
bool fail_in_sync_;
int sleep_time_s_;
std::string error_msg_;
std::atomic_flag cancel_ = ATOMIC_FLAG_INIT;
};
REGISTER_CPU_OPERATOR(AsyncErrorOp, AsyncErrorOp);
OPERATOR_SCHEMA(AsyncErrorOp);
std::unique_ptr<NetBase> AsyncErrorNet(
Workspace* ws,
const std::string& net_name,
bool throw_,
bool fail_in_sync) {
std::string spec_template = R"DOC(
name: "<NET_NAME>"
type: "async_scheduling"
op {
type: "AsyncErrorOp"
arg {
name: "throw"
i: <THROW>
}
arg {
name: "fail_in_sync"
i: <FAIL_IN_SYNC>
}
}
)DOC";
std::string spec = spec_template;
ReplaceAll(spec, "<NET_NAME>", net_name.c_str());
ReplaceAll(spec, "<THROW>", throw_ ? "1" : "0");
ReplaceAll(spec, "<FAIL_IN_SYNC>", fail_in_sync ? "1" : "0");
NetDef net_def;
CAFFE_ENFORCE(TextFormat::ParseFromString(spec, &net_def));
return CreateNet(net_def, ws);
}
TEST(NetTest, AsyncErrorOpTest) {
Workspace ws;
// Throw in sync part
auto net = AsyncErrorNet(&ws, "net1", /*throw_*/ true, /*fail_in_sync*/ true);
ASSERT_THROW(net->Run(), std::logic_error);
// Return false in sync part
net = AsyncErrorNet(&ws, "net2", /*throw_*/ false, /*fail_in_sync*/ true);
ASSERT_FALSE(net->Run());
// SetFinishedWithException in async part
net = AsyncErrorNet(&ws, "net3", /*throw_*/ true, /*fail_in_sync*/ false);
ASSERT_THROW(net->Run(), std::logic_error);
// SetFinished(err) in async part
net = AsyncErrorNet(&ws, "net4", /*throw_*/ false, /*fail_in_sync*/ false);
ASSERT_FALSE(net->Run());
}
TEST(NetTest, AsyncErrorTimingsTest) {
Workspace ws;
std::string spec = R"DOC(
name: "net"
type: "async_scheduling"
op {
type: "AsyncErrorOp"
arg {
name: "throw"
i: 1
}
arg {
name: "fail_in_sync"
i: 0
}
arg {
name: "sleep_time"
i: 2
}
arg {
name: "error_msg"
s: "Error1"
}
}
op {
type: "AsyncErrorOp"
arg {
name: "throw"
i: 1
}
arg {
name: "fail_in_sync"
i: 0
}
arg {
name: "sleep_time"
i: 1
}
arg {
name: "error_msg"
s: "Error2"
}
}
)DOC";
NetDef net_def;
CAFFE_ENFORCE(TextFormat::ParseFromString(spec, &net_def));
auto net = CreateNet(net_def, &ws);
try {
net->Run();
} catch (const std::logic_error& e) {
ASSERT_TRUE(std::string(e.what()) == "Error2");
} catch (...) {
FAIL() << "Expected std::logic_error thrown";
}
}
class SyncErrorOp final : public Operator<CPUContext> {
public:
SyncErrorOp(const OperatorDef& operator_def, Workspace* ws)
: Operator<CPUContext>(operator_def, ws),
fail_(OperatorBase::GetSingleArgument<bool>("fail", true)),
throw_(OperatorBase::GetSingleArgument<bool>("throw", false)) {}
bool RunOnDevice() override {
if (fail_) {
if (throw_) {
throw std::logic_error("Error");
} else {
return false;
}
} else {
return true;
}
}