1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/
#include "tensorflow/compiler/xla/service/hlo_domain_verifier.h"
#include <set>
#include "tensorflow/compiler/xla/service/hlo_computation.h"
#include "tensorflow/compiler/xla/service/hlo_domain_map.h"
#include "tensorflow/compiler/xla/service/hlo_graph_dumper.h"
#include "tensorflow/compiler/xla/service/hlo_instruction.h"
#include "tensorflow/compiler/xla/service/hlo_opcode.h"
#include "tensorflow/compiler/xla/types.h"
namespace xla {
class HloDomainVerifier::RunContext {
public:
RunContext(HloModule* module, HloDomainVerifier* verifier)
: module_(module), verifier_(verifier) {}
Status Run();
private:
// If the verifier caller passed an empty vector for kinds, we collect all the
// avalable domain types.
Status PopulateDomainKinds();
HloModule* module_;
HloDomainVerifier* verifier_;
};
Status HloDomainVerifier::RunContext::PopulateDomainKinds() {
if (verifier_->kinds_.empty()) {
// The caller specified no domain kinds, collect all the ones available.
std::set<string> kinds;
for (HloComputation* computation : module_->computations()) {
for (HloInstruction* instruction : computation->instructions()) {
if (instruction->opcode() == HloOpcode::kDomain) {
TF_RET_CHECK(instruction->user_side_metadata().Kind() ==
instruction->operand_side_metadata().Kind())
<< instruction->ToString();
kinds.insert(string(instruction->user_side_metadata().Kind()));
}
}
}
verifier_->kinds_.insert(verifier_->kinds_.end(), kinds.begin(),
kinds.end());
}
return Status::OK();
}
Status HloDomainVerifier::RunContext::Run() {
VLOG(4) << "Running HLO Domain Verifier";
TF_RETURN_IF_ERROR(PopulateDomainKinds());
for (HloComputation* computation : module_->computations()) {
for (auto& kind : verifier_->kinds_) {
// First create the domain instruciton sets. A domain instruction set is
// the set of instructions whose edges never cross a kDomain instruction.
TF_ASSIGN_OR_RETURN(std::unique_ptr<HloDomainMap> domain_map,
HloDomainMap::Create(computation, kind));
// Verify every domain populated within the map.
for (auto& domain : domain_map->GetDomains()) {
TF_RETURN_IF_ERROR(VerifyDomain(*domain).status());
}
}
}
return Status::OK();
}
StatusOr<bool> HloDomainVerifier::Run(HloModule* module) {
RunContext run_context(module, this);
TF_RETURN_IF_ERROR(run_context.Run());
return false;
}
StatusOr<const DomainMetadata*> HloDomainVerifier::VerifyDomain(
const DomainMetadata::Domain& domain) {
const DomainMetadata* ref_metadata = nullptr;
VLOG(4) << "Reach set:";
for (HloInstruction* instruction : domain.instructions) {
VLOG(4) << " " << instruction->name();
}
VLOG(4) << " Domains:";
for (HloInstruction* instruction : domain.enter_domains) {
const DomainMetadata& meta = instruction->user_side_metadata();
VLOG(4) << " User side: " << instruction->name();
VLOG(4) << " " << meta.ToString();
if (ref_metadata == nullptr) {
ref_metadata = &meta;
} else {
TF_RET_CHECK(meta.Matches(*ref_metadata))
<< "Metadata mismatch at instruction " << instruction->name() << " : "
<< meta.ToString() << " vs " << ref_metadata->ToString();
}
}
for (HloInstruction* instruction : domain.exit_domains) {
const DomainMetadata& meta = instruction->operand_side_metadata();
VLOG(4) << " Operand side: " << instruction->name();
VLOG(4) << " " << meta.ToString();
if (ref_metadata == nullptr) {
ref_metadata = &meta;
} else {
TF_RET_CHECK(meta.Matches(*ref_metadata))
<< "Metadata mismatch at instruction " << instruction->name() << " : "
<< meta.ToString() << " vs " << ref_metadata->ToString();
}
}
return ref_metadata;
}
} // namespace xla
|
