50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
# Copyright 2017 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""Constants used in tf_cnn_benchmarks."""
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from enum import Enum
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class NetworkTopology(str, Enum):
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"""Network topology describes how multiple GPUs are inter-connected.
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"""
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# DGX-1 uses hybrid cube mesh topology with the following device peer to peer
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# matrix:
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# DMA: 0 1 2 3 4 5 6 7
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# 0: Y Y Y Y Y N N N
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# 1: Y Y Y Y N Y N N
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# 2: Y Y Y Y N N Y N
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# 3: Y Y Y Y N N N Y
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# 4: Y N N N Y Y Y Y
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# 5: N Y N N Y Y Y Y
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# 6: N N Y N Y Y Y Y
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# 7: N N N Y Y Y Y Y
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DGX1 = "dgx1"
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# V100 in GCP are connected with the following device peer to peer matrix.
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# In this topology, bandwidth of the connection depends on if it uses NVLink
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# or PCIe link.
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# DMA: 0 1 2 3 4 5 6 7
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# 0: Y Y Y Y N Y N N
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# 1: Y Y Y Y N N N N
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# 2: Y Y Y Y N N N Y
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# 3: Y Y Y Y N N N N
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# 4: N N N N Y Y Y Y
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# 5: Y N N N Y Y Y Y
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# 6: N N N N Y Y Y Y
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# 7: N N Y N Y Y Y Y
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GCP_V100 = "gcp_v100"
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