[Code scan] Accept the advertised CUSOLVERMP_PATH variable in cuSOLVERMp setup

[njzjz]

This issue is a result of a Codex global repository scan.

SetupCuSolverMp.cmake tells users to set CUSOLVERMP_PATH, but the actual search hints use CAL_CUSOLVERMP_PATH and NVHPC_ROOT_DIR. CollectBuildInfoVars.cmake also reports only CAL_CUSOLVERMP_PATH. Users following the error message can still get “not found”.

Search hints and error message:

abacus-develop/cmake/SetupCuSolverMp.cmake

Lines 10 to 22 in 84ca04b

	# Find cuSOLVERMp first, then decide communicator backend.
	find_library(CUSOLVERMP_LIBRARY NAMES cusolverMp
	HINTS ${CAL_CUSOLVERMP_PATH} ${NVHPC_ROOT_DIR}
	PATH_SUFFIXES lib lib64 math_libs/lib math_libs/lib64)
	find_path(CUSOLVERMP_INCLUDE_DIR NAMES cusolverMp.h
	HINTS ${CAL_CUSOLVERMP_PATH} ${NVHPC_ROOT_DIR}
	PATH_SUFFIXES include math_libs/include)
	if(NOT CUSOLVERMP_LIBRARY OR NOT CUSOLVERMP_INCLUDE_DIR)
	message(FATAL_ERROR
	"cuSOLVERMp not found. Set CUSOLVERMP_PATH or NVHPC_ROOT_DIR."
	)

Build info path reporting:

abacus-develop/cmake/CollectBuildInfoVars.cmake

Lines 265 to 268 in 84ca04b

	if(DEFINED CAL_CUSOLVERMP_PATH AND ENABLE_CUSOLVERMP)
	set(ABACUS_CUSOLVERMP_VERSION "yes (path: ${CAL_CUSOLVERMP_PATH})")
	elseif(ENABLE_CUSOLVERMP)
	set(ABACUS_CUSOLVERMP_VERSION "yes (version unknown)")

Relevant code:

find_library(CUSOLVERMP_LIBRARY NAMES cusolverMp
    HINTS ${CAL_CUSOLVERMP_PATH} ${NVHPC_ROOT_DIR}
    ...)
...
message(FATAL_ERROR
  "cuSOLVERMp not found. Set CUSOLVERMP_PATH or NVHPC_ROOT_DIR."
)

Suggested fix:

Either accept both CUSOLVERMP_PATH and CAL_CUSOLVERMP_PATH as aliases in the search/build-info logic, or update the error message and documentation to the actual supported variable.

[Growl1234]

The implementation of cuSOLVERMp discovery is fundamentally problematic in my view, and the suggested alias would not improve its design. SetupCuSolverMp.cmake needs a complete revision rather than another incremental workaround.