1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
2
3 Licensed under the Apache License, Version 2.0 (the "License");
4 you may not use this file except in compliance with the License.
5 You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9 Unless required by applicable law or agreed to in writing, software
10 distributed under the License is distributed on an "AS IS" BASIS,
11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 See the License for the specific language governing permissions and
13 limitations under the License.
14 ==============================================================================*/
15
16 #include "tensorflow/compiler/xla/service/gpu/thunk.h"
17
18 namespace xla {
19 namespace gpu {
20
GetGlobalDeviceId() const21 StatusOr<GlobalDeviceId> Thunk::ExecuteParams::GetGlobalDeviceId() const {
22 int64_t local_device_ordinal = stream->parent()->device_ordinal();
23 if (gpu_global_device_ids) {
24 TF_RET_CHECK(0 <= local_device_ordinal &&
25 local_device_ordinal < gpu_global_device_ids->size());
26 return (*gpu_global_device_ids)[local_device_ordinal];
27 } else {
28 // No local -> global mapping was provided; assume the identity mapping.
29 return GlobalDeviceId(local_device_ordinal);
30 }
31 }
32
KindToString(Thunk::Kind kind)33 /*static*/ absl::string_view Thunk::KindToString(Thunk::Kind kind) {
34 switch (kind) {
35 case Thunk::kCholesky:
36 return "kCholesky";
37 case Thunk::kCollectivePermute:
38 return "kCollectivePermute";
39 case Thunk::kConditional:
40 return "kConditional";
41 case Thunk::kConvolution:
42 return "kConvolution";
43 case Thunk::kCopy:
44 return "kCopy";
45 case Thunk::kCudnnBatchNormBackward:
46 return "kCudnnBatchNormBackward";
47 case Thunk::kCudnnBatchNormForwardInference:
48 return "kCudnnBatchNormForwardInference";
49 case Thunk::kCudnnBatchNormForwardTraining:
50 return "kCudnnBatchNormForwardTraining";
51 case Thunk::kCustomCall:
52 return "kCustomCall";
53 case Thunk::kNcclAllGather:
54 return "kNcclAllGather";
55 case Thunk::kNcclAllReduce:
56 return "kNcclAllReduce";
57 case Thunk::kNcclAllReduceStart:
58 return "kNcclAllReduceStart";
59 case Thunk::kNcclAllReduceDone:
60 return "kNcclAllReduceDone";
61 case Thunk::kNcclReduceScatter:
62 return "kNcclReduceScatter";
63 case Thunk::kNcclAllToAll:
64 return "kNcclAllToAll";
65 case Thunk::kFft:
66 return "kFft";
67 case Thunk::kGemm:
68 return "kGemm";
69 case Thunk::kInfeed:
70 return "kInfeed";
71 case Thunk::kKernel:
72 return "kKernel";
73 case Thunk::kMemset32BitValue:
74 return "kMemset32BitValue";
75 case Thunk::kMemzero:
76 return "kMemzero";
77 case Thunk::kOutfeed:
78 return "kOutfeed";
79 case Thunk::kReplicaId:
80 return "kReplicaId";
81 case Thunk::kPartitionId:
82 return "kPartitionId";
83 case Thunk::kSequential:
84 return "kSequential";
85 case Thunk::kTriangularSolve:
86 return "kTriangularSolve";
87 case Thunk::kWhile:
88 return "kWhile";
89 }
90 }
91
operator <<(std::ostream & os,Thunk::Kind kind)92 std::ostream& operator<<(std::ostream& os, Thunk::Kind kind) {
93 return os << Thunk::KindToString(kind);
94 }
95
ToString(int indent,std::function<std::string (const Thunk *)> get_thunk_annotation) const96 std::string ThunkSequence::ToString(
97 int indent,
98 std::function<std::string(const Thunk*)> get_thunk_annotation) const {
99 const std::string indent_str(" ", indent * 2);
100 if (empty()) return indent_str + "No thunks.";
101
102 auto thunk_with_longest_kind = absl::c_max_element(
103 *this,
104 [](const std::unique_ptr<Thunk>& a, const std::unique_ptr<Thunk>& b) {
105 return Thunk::KindToString(a->kind()).length() <
106 Thunk::KindToString(b->kind()).length();
107 });
108 int64_t max_thunk_kind_len =
109 Thunk::KindToString(thunk_with_longest_kind->get()->kind()).length();
110 std::string result;
111 for (const std::unique_ptr<Thunk>& thunk : *this) {
112 // Write out the thunk kind, padded out to max_thunk_kind_len.
113 absl::string_view kind_str = Thunk::KindToString(thunk->kind());
114 absl::StrAppend(&result, indent_str, kind_str,
115 string(max_thunk_kind_len - kind_str.length(), ' '), "\t");
116 if (get_thunk_annotation) {
117 absl::StrAppend(&result, get_thunk_annotation(thunk.get()));
118 }
119 absl::StrAppend(&result, thunk->ToStringExtra(indent));
120 absl::StrAppend(&result, "\n");
121 }
122 return result;
123 }
124
125 } // namespace gpu
126 } // namespace xla
127