Fix BLIS detection to use BLIS_jll and LAPACK_jll packages

- Update algorithm detection to check for BLIS_jll and LAPACK_jll instead of BLIS.jl
- Use correct UUIDs for JLL package detection in loaded modules
- Add detailed system information tracking for JLL package availability
- Improve error messages to clearly indicate JLL package requirements
- BLISLUFactorization now correctly depends on JLL packages being loaded
- Fixes BLIS algorithm availability detection for proper benchmarking

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: ChrisRackauckas

lib/LinearSolveAutotune/src/LinearSolveAutotune.jl

@@ -23,21 +23,33 @@ const BLIS_JLL_AVAILABLE = Ref(false)
 const LAPACK_JLL_AVAILABLE = Ref(false)
 
 function __init__()
-    # Try to load JLL packages at runtime
+    # Try to load JLL packages at runtime for enhanced BLIS support
     try
-        @eval using BLIS_jll
-        BLIS_JLL_AVAILABLE[] = true
-        @info "BLIS_jll loaded for enhanced BLIS library access"
+        # Check if BLIS_jll is available in the current environment
+        if haskey(Base.loaded_modules, Base.PkgId(Base.UUID("068f7417-6964-5086-9a5b-bc0c5b4f7fa6"), "BLIS_jll"))
+            BLIS_JLL_AVAILABLE[] = true
+            @info "BLIS_jll detected - enhanced BLIS library access available"
+        else
+            @eval using BLIS_jll
+            BLIS_JLL_AVAILABLE[] = true
+            @info "BLIS_jll loaded for enhanced BLIS library access"
+        end
     catch
-        @debug "BLIS_jll not available, using standard BLIS detection"
+        @debug "BLIS_jll not available, BLISLUFactorization may not work"
     end
 
     try
-        @eval using LAPACK_jll  
-        LAPACK_JLL_AVAILABLE[] = true
-        @info "LAPACK_jll loaded for enhanced LAPACK library access"
+        # Check if LAPACK_jll is available in the current environment
+        if haskey(Base.loaded_modules, Base.PkgId(Base.UUID("51474c39-65e3-53ba-86ba-03b1b862ec14"), "LAPACK_jll"))
+            LAPACK_JLL_AVAILABLE[] = true
+            @info "LAPACK_jll detected - enhanced LAPACK library access available"
+        else
+            @eval using LAPACK_jll  
+            LAPACK_JLL_AVAILABLE[] = true
+            @info "LAPACK_jll loaded for enhanced LAPACK library access"
+        end
     catch
-        @debug "LAPACK_jll not available, using standard LAPACK detection"
+        @debug "LAPACK_jll not available, some BLIS functionality may be limited"
     end
 end
 

lib/LinearSolveAutotune/src/algorithms.jl

@@ -35,10 +35,13 @@ function get_available_algorithms(; skip_missing_algs::Bool = false)
         end
     end
 
-    # BLIS if available and hardware supports it
+    # BLIS if JLL packages are available and hardware supports it
     try
-        # Check if BLIS is loaded and BLISLUFactorization is available
-        if isdefined(LinearSolve, :BLISLUFactorization) && hasmethod(LinearSolve.BLISLUFactorization, ())
+        # Check if BLIS_jll and LAPACK_jll are available, which enable BLISLUFactorization
+        blis_jll_available = haskey(Base.loaded_modules, Base.PkgId(Base.UUID("068f7417-6964-5086-9a5b-bc0c5b4f7fa6"), "BLIS_jll"))
+        lapack_jll_available = haskey(Base.loaded_modules, Base.PkgId(Base.UUID("51474c39-65e3-53ba-86ba-03b1b862ec14"), "LAPACK_jll"))
+        
+        if (blis_jll_available || lapack_jll_available) && isdefined(LinearSolve, :BLISLUFactorization) && hasmethod(LinearSolve.BLISLUFactorization, ())
             # Test if BLIS works on this hardware
             try
                 test_alg = LinearSolve.BLISLUFactorization()
@@ -54,15 +57,19 @@ function get_available_algorithms(; skip_missing_algs::Bool = false)
                 end
             end
         else
-            msg = "BLIS.jl not loaded or BLISLUFactorization not available"
+            if blis_jll_available || lapack_jll_available
+                msg = "BLIS_jll/LAPACK_jll loaded but BLISLUFactorization not available in LinearSolve"
+            else
+                msg = "BLIS_jll and LAPACK_jll not loaded - BLISLUFactorization requires these JLL packages"
+            end
             if skip_missing_algs
                 @warn msg
             else
-                @info msg  # Not having BLIS is not an error
+                @info msg  # Not having BLIS JLL packages is not an error
             end
         end
     catch e
-        msg = "Error checking BLIS availability: $e"
+        msg = "Error checking BLIS JLL package availability: $e"
         if skip_missing_algs
             @warn msg
         else

lib/LinearSolveAutotune/src/gpu_detection.jl

@@ -242,18 +242,26 @@ function get_detailed_system_info()
         system_data["apple_accelerate_used"] = false
     end
 
-    # BLIS availability check
+    # BLIS availability check - based on JLL packages
     system_data["blis_available"] = false
     system_data["blis_used"] = false
+    system_data["blis_jll_loaded"] = false
+    system_data["lapack_jll_loaded"] = false
+    
     try
-        # Check if BLIS is loaded and BLISLUFactorization is available
-        if isdefined(LinearSolve, :BLISLUFactorization) && hasmethod(LinearSolve.BLISLUFactorization, ())
+        # Check if BLIS_jll and LAPACK_jll are loaded
+        system_data["blis_jll_loaded"] = haskey(Base.loaded_modules, Base.PkgId(Base.UUID("068f7417-6964-5086-9a5b-bc0c5b4f7fa6"), "BLIS_jll"))
+        system_data["lapack_jll_loaded"] = haskey(Base.loaded_modules, Base.PkgId(Base.UUID("51474c39-65e3-53ba-86ba-03b1b862ec14"), "LAPACK_jll"))
+        
+        # BLIS is available if JLL packages are loaded and BLISLUFactorization exists
+        if (system_data["blis_jll_loaded"] || system_data["lapack_jll_loaded"]) && 
+           isdefined(LinearSolve, :BLISLUFactorization) && hasmethod(LinearSolve.BLISLUFactorization, ())
             system_data["blis_available"] = true
             # Check if BLIS is actually being used (contains "blis" in BLAS vendor)
             system_data["blis_used"] = contains(lowercase(string(system_data["blas_vendor"])), "blis")
         end
     catch
-        # If there's any error checking BLIS, leave as false
+        # If there's any error checking BLIS JLL packages, leave as false
     end
 
     # GPU information