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#include "tensorflow/core/framework/op_segment.h"
#include "tensorflow/core/framework/allocator.h"
#include "tensorflow/core/framework/graph.pb.h"
#include "tensorflow/core/framework/node_def_builder.h"
#include "tensorflow/core/framework/op_kernel.h"
#include "tensorflow/core/kernels/ops_util.h"
#include "tensorflow/core/platform/logging.h"
#include "tensorflow/core/lib/core/errors.h"
#include "tensorflow/core/lib/strings/strcat.h"
#include <gtest/gtest.h>
#include "tensorflow/core/lib/core/status_test_util.h"
namespace tensorflow {
class OpSegmentTest : public ::testing::Test {
protected:
DeviceBase device_;
std::vector<NodeDef> int32_nodedefs_;
std::vector<NodeDef> float_nodedefs_;
OpSegmentTest() : device_(Env::Default()) {
RequireDefaultOps();
for (int i = 0; i < 10; ++i) {
NodeDef def;
TF_CHECK_OK(NodeDefBuilder(strings::StrCat("op", i), "Mul")
.Input("x", 0, DT_INT32)
.Input("y", 0, DT_INT32)
.Finalize(&def));
int32_nodedefs_.push_back(def);
TF_CHECK_OK(NodeDefBuilder(strings::StrCat("op", i), "Mul")
.Input("x", 0, DT_FLOAT)
.Input("y", 0, DT_FLOAT)
.Finalize(&def));
float_nodedefs_.push_back(def);
}
}
void ValidateOpAndTypes(OpKernel* op, const NodeDef& expected, DataType dt) {
ASSERT_NE(op, nullptr);
EXPECT_EQ(expected.DebugString(), op->def().DebugString());
EXPECT_EQ(2, op->num_inputs());
EXPECT_EQ(dt, op->input_type(0));
EXPECT_EQ(dt, op->input_type(1));
EXPECT_EQ(1, op->num_outputs());
EXPECT_EQ(dt, op->output_type(0));
}
OpSegment::CreateKernelFn GetFn(const NodeDef* ndef) {
return [this, ndef](OpKernel** kernel) {
Status s;
auto created =
CreateOpKernel(DEVICE_CPU, &device_, cpu_allocator(), *ndef, &s);
if (s.ok()) {
*kernel = created.release();
}
return s;
};
}
};
TEST_F(OpSegmentTest, Basic) {
OpSegment opseg;
OpKernel* op;
opseg.AddHold("A");
opseg.AddHold("B");
for (int i = 0; i < 10; ++i) {
// Register in session A.
auto* ndef = &float_nodedefs_[i];
EXPECT_OK(opseg.FindOrCreate("A", ndef->name(), &op, GetFn(ndef)));
ValidateOpAndTypes(op, *ndef, DT_FLOAT);
// Register in session B.
ndef = &int32_nodedefs_[i];
EXPECT_OK(opseg.FindOrCreate("B", ndef->name(), &op, GetFn(ndef)));
ValidateOpAndTypes(op, *ndef, DT_INT32);
}
auto reterr = [](OpKernel** kernel) {
return errors::Internal("Should not be called");
};
for (int i = 0; i < 10; ++i) {
// Lookup op in session A.
EXPECT_OK(opseg.FindOrCreate("A", strings::StrCat("op", i), &op, reterr));
ValidateOpAndTypes(op, float_nodedefs_[i], DT_FLOAT);
// Lookup op in session B.
EXPECT_OK(opseg.FindOrCreate("B", strings::StrCat("op", i), &op, reterr));
ValidateOpAndTypes(op, int32_nodedefs_[i], DT_INT32);
}
opseg.RemoveHold("A");
opseg.RemoveHold("B");
}
TEST_F(OpSegmentTest, SessionNotFound) {
OpSegment opseg;
OpKernel* op;
NodeDef def = float_nodedefs_[0];
Status s = opseg.FindOrCreate("A", def.name(), &op, GetFn(&def));
EXPECT_TRUE(errors::IsNotFound(s)) << s;
}
TEST_F(OpSegmentTest, CreateFailure) {
OpSegment opseg;
OpKernel* op;
NodeDef def = float_nodedefs_[0];
def.set_op("nonexistop");
opseg.AddHold("A");
Status s = opseg.FindOrCreate("A", def.name(), &op, GetFn(&def));
EXPECT_TRUE(errors::IsNotFound(s)) << s;
opseg.RemoveHold("A");
}
TEST_F(OpSegmentTest, AddRemoveHolds) {
OpSegment opseg;
OpKernel* op;
const auto& ndef = int32_nodedefs_[0];
// No op.
opseg.RemoveHold("null");
// Thread1 register the op and wants to ensure it alive.
opseg.AddHold("foo");
EXPECT_OK(opseg.FindOrCreate("foo", ndef.name(), &op, GetFn(&ndef)));
// Thread2 starts some execution needs "op" to be alive.
opseg.AddHold("foo");
// Thread1 clears session "foo". E.g., a master sends CleanupGraph
// before an execution finishes.
opseg.RemoveHold("foo");
// Thread2 should still be able to access "op".
ValidateOpAndTypes(op, ndef, DT_INT32);
// Thread2 then remove its hold on "foo".
opseg.RemoveHold("foo");
}
} // namespace tensorflow
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