wehub-resource-sync
42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
# Copyright 2023-present Daniel Han-Chen & the Unsloth team. 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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from litgpt.constants import _TRITON_AVAILABLE
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if _TRITON_AVAILABLE:
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import triton
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MAX_FUSED_SIZE = 65536 # 2**16
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next_power_of_2 = triton.next_power_of_2
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def calculate_settings(n):
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BLOCK_SIZE = next_power_of_2(n)
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if BLOCK_SIZE > MAX_FUSED_SIZE:
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raise RuntimeError(
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f"Cannot launch Triton kernel since n = {n} exceeds the maximum CUDA blocksize = {MAX_FUSED_SIZE}."
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)
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num_warps = 4
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if BLOCK_SIZE >= 32768:
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num_warps = 32
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elif BLOCK_SIZE >= 8192:
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num_warps = 16
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elif BLOCK_SIZE >= 2048:
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num_warps = 8
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return BLOCK_SIZE, num_warps
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pass
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