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# Copyright (c) 2017-2023, University of Tennessee. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause
# This program is free software: you can redistribute it and/or modify it under
# the terms of the BSD 3-Clause license. See the accompanying LICENSE file.
# Check if this file has already been run with these settings.
if (DEFINED lapack_config_cache
AND "${lapack_config_cache}" STREQUAL "${LAPACK_LIBRARIES}")
message( DEBUG "LAPACK config already done for '${LAPACK_LIBRARIES}'" )
return()
endif()
set( lapack_config_cache "${LAPACK_LIBRARIES}" CACHE INTERNAL "" )
include( "cmake/util.cmake" )
#-------------------------------------------------------------------------------
message( STATUS "Checking LAPACK version" )
try_run(
run_result compile_result ${CMAKE_CURRENT_BINARY_DIR}
SOURCES
"${CMAKE_CURRENT_SOURCE_DIR}/config/lapack_version.cc"
LINK_LIBRARIES
${LAPACK_LIBRARIES} ${blaspp_libraries}
COMPILE_DEFINITIONS
${blaspp_defines}
COMPILE_OUTPUT_VARIABLE
compile_output
RUN_OUTPUT_VARIABLE
run_output
)
debug_try_run( "lapack_version.cc" "${compile_result}" "${compile_output}"
"${run_result}" "${run_output}" )
if (compile_result
AND "${run_output}" MATCHES "LAPACK_VERSION=(([0-9]+)\\.([0-9]+)\\.([0-9]+))")
# Form version without periods (30201 for 3.2.1) for easy
# comparisons in C preprocessor.
set( lapack_version "${CMAKE_MATCH_2}${CMAKE_MATCH_3}${CMAKE_MATCH_4}" )
message( "${blue} LAPACK version ${CMAKE_MATCH_1} (${lapack_version})${plain}" )
list( APPEND lapackpp_defs_ "-DLAPACK_VERSION=${lapack_version}" )
else()
message( "${red} Unknown LAPACK version${plain}" )
endif()
#-------------------------------------------------------------------------------
message( STATUS "Checking for XBLAS" )
try_run(
run_result compile_result ${CMAKE_CURRENT_BINARY_DIR}
SOURCES
"${CMAKE_CURRENT_SOURCE_DIR}/config/lapack_xblas.cc"
LINK_LIBRARIES
${LAPACK_LIBRARIES} ${blaspp_libraries}
COMPILE_DEFINITIONS
${blaspp_defines}
COMPILE_OUTPUT_VARIABLE
compile_output
RUN_OUTPUT_VARIABLE
run_output
)
debug_try_run( "lapack_xblas.cc" "${compile_result}" "${compile_output}"
"${run_result}" "${run_output}" )
if (compile_result AND "${run_output}" MATCHES "ok")
message( "${blue} Found XBLAS${plain}" )
list( APPEND lapackpp_defs_ "-DLAPACK_HAVE_XBLAS" )
else()
message( "${red} XBLAS not found.${plain}" )
endif()
#-------------------------------------------------------------------------------
# Find LAPACKE, either in the BLAS/LAPACK library or in -llapacke.
# Check for pstrf (Cholesky with pivoting).
set( lib_list ";-llapacke" )
message( DEBUG "lib_list ${lib_list}" )
foreach (lib IN LISTS lib_list)
message( STATUS "Checking for LAPACKE library ${lib}" )
try_run(
run_result compile_result ${CMAKE_CURRENT_BINARY_DIR}
SOURCES
"${CMAKE_CURRENT_SOURCE_DIR}/config/lapacke_pstrf.cc"
LINK_LIBRARIES
${lib} ${LAPACK_LIBRARIES} ${blaspp_libraries}
COMPILE_DEFINITIONS
${blaspp_defines}
COMPILE_OUTPUT_VARIABLE
compile_output
RUN_OUTPUT_VARIABLE
run_output
)
debug_try_run( "lapacke_pstrf.cc" "${compile_result}" "${compile_output}"
"${run_result}" "${run_output}" )
if (compile_result AND "${run_output}" MATCHES "ok")
list( APPEND lapackpp_defs_ "-DLAPACK_HAVE_LAPACKE" )
set( lapacke_libraries "${lib}" CACHE INTERNAL "" )
set( lapacke_found true CACHE INTERNAL "" )
break()
endif()
endforeach()
if (lapacke_found)
if (NOT lapacke_libraries)
message( "${blue} Found LAPACKE library in BLAS library${plain}" )
else()
message( "${blue} Found LAPACKE library: ${lapacke_libraries}${plain}" )
endif()
else()
message( "${red} LAPACKE library not found. Tester cannot be built.${plain}" )
endif()
#-------------------------------------------------------------------------------
message( DEBUG "
lapackpp_defs_ = '${lapackpp_defs_}'
lapacke_found = '${lapacke_found}'
lapacke_libraries = '${lapacke_libraries}'
")
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