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paddlepaddle--paddle/cmake/sleef.cmake
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2026-07-13 12:40:42 +08:00

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CMake

# Copyright (c) 2026 PaddlePaddle 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.
# Sleef library configuration
# Sleef provides vectorized math functions with high precision and performance
option(
WITH_SLEEF
"Compile PaddlePaddle with Sleef library for high precision math functions"
OFF)
if(WITH_SLEEF)
# Always build Sleef from the in-tree submodule (third_party/sleef) to
# guarantee consistent feature set (e.g. AVX/AVX2 256-bit symbols like
# Sleef_sinf8_u35) across local and CI environments. System-installed
# sleef is intentionally not used because its build options are
# uncontrolled and may miss required dispatch variants.
include(external/sleef)
if(TARGET extern_sleef)
add_definitions(-DPADDLE_WITH_SLEEF)
message(STATUS "Compile with Sleef support")
# Add precision control option
set(PADDLE_SLEEF_POW_PRECISION
10
CACHE
STRING
"Sleef pow function precision: 10 (1.0 ULP), 15 (1.5 ULP), 35 (3.5 ULP)"
)
set_property(CACHE PADDLE_SLEEF_POW_PRECISION PROPERTY STRINGS 10 15 35)
# Validate precision option
if(NOT PADDLE_SLEEF_POW_PRECISION MATCHES "^(10|15|35)$")
message(FATAL_ERROR "PADDLE_SLEEF_POW_PRECISION must be 10, 15, or 35")
endif()
add_definitions(-DPADDLE_SLEEF_POW_PRECISION=${PADDLE_SLEEF_POW_PRECISION})
message(
STATUS "Sleef pow precision set to: ${PADDLE_SLEEF_POW_PRECISION} ULP")
else()
message(WARNING "Sleef not found, disabling Sleef support")
set(WITH_SLEEF OFF)
endif()
endif()