Fix CPUSummary integration - use correct function names

- Fixed CPUSummary.num_cores() instead of num_physical_cores()
- Use Sys.CPU_THREADS for logical cores
- Use Threads.nthreads() for Julia threads
- Fixed BLAS thread count with LinearAlgebra.BLAS.get_num_threads()
- Use standard Julia functions where CPUSummary doesn't provide equivalents

Author: ChrisRackauckas

lib/LinearSolveAutotune/src/LinearSolveAutotune.jl

@@ -47,12 +47,12 @@ function Base.show(io::IO, results::AutotuneResults)
     println(io, "LinearSolve.jl Autotune Results")
     println(io, "="^60)
 
-    # System info summary using CPUSummary
+    # System info summary
     println(io, "\n📊 System Information:")
     println(io, "  • CPU: ", get(results.sysinfo, "cpu_name", "Unknown"))
-    println(io, "  • OS: ", CPUSummary.os_name(), " (", get(results.sysinfo, "os", "Unknown"), ")")
+    println(io, "  • OS: ", get(results.sysinfo, "os_name", "Unknown"), " (", get(results.sysinfo, "os", "Unknown"), ")")
     println(io, "  • Julia: ", get(results.sysinfo, "julia_version", "Unknown"))
-    println(io, "  • Threads: ", CPUSummary.num_threads(), " (BLAS: ", CPUSummary.blas_num_threads(), ")")
+    println(io, "  • Threads: ", get(results.sysinfo, "num_threads", "Unknown"), " (BLAS: ", get(results.sysinfo, "blas_num_threads", "Unknown"), ")")
 
     # Results summary
     successful_results = filter(row -> row.success, results.results_df)

lib/LinearSolveAutotune/src/gpu_detection.jl

@@ -78,13 +78,28 @@ function get_system_info()
 
     info["julia_version"] = string(VERSION)
     info["os"] = string(Sys.KERNEL)
-    info["os_name"] = CPUSummary.os_name()
+    info["os_name"] = Sys.iswindows() ? "Windows" : Sys.islinux() ? "Linux" : Sys.isapple() ? "macOS" : "Other"
     info["arch"] = string(Sys.ARCH)
-    info["cpu_name"] = CPUSummary.cpu_name()
-    info["num_cores"] = CPUSummary.num_physical_cores()
-    info["num_logical_cores"] = CPUSummary.num_logical_cores()
-    info["num_threads"] = CPUSummary.num_threads()
-    info["blas_num_threads"] = CPUSummary.blas_num_threads()
+    
+    # Use CPUSummary where available, fallback to Sys otherwise
+    try
+        info["cpu_name"] = string(Sys.CPU_NAME)
+    catch
+        info["cpu_name"] = "Unknown"
+    end
+    
+    # CPUSummary.num_cores() returns the physical cores
+    info["num_cores"] = CPUSummary.num_cores()
+    info["num_logical_cores"] = Sys.CPU_THREADS
+    info["num_threads"] = Threads.nthreads()
+    
+    # BLAS threads
+    try
+        info["blas_num_threads"] = LinearAlgebra.BLAS.get_num_threads()
+    catch
+        info["blas_num_threads"] = 1
+    end
+    
     info["blas_vendor"] = string(LinearAlgebra.BLAS.vendor())
     info["has_cuda"] = is_cuda_available()
     info["has_metal"] = is_metal_available()
@@ -152,19 +167,19 @@ function get_detailed_system_info()
     end
 
     try
-        system_data["cpu_cores"] = CPUSummary.num_physical_cores()
+        system_data["cpu_cores"] = CPUSummary.num_cores()
     catch
         system_data["cpu_cores"] = "unknown"
     end
 
     try
-        system_data["cpu_logical_cores"] = CPUSummary.num_logical_cores()
+        system_data["cpu_logical_cores"] = Sys.CPU_THREADS
     catch
         system_data["cpu_logical_cores"] = "unknown"
     end
 
     try
-        system_data["julia_threads"] = CPUSummary.num_threads()
+        system_data["julia_threads"] = Threads.nthreads()
     catch
         system_data["julia_threads"] = "unknown"
     end
@@ -181,16 +196,16 @@ function get_detailed_system_info()
         system_data["machine"] = "unknown"
     end
 
-    # CPU details using CPUSummary
+    # CPU details
     try
-        system_data["cpu_name"] = CPUSummary.cpu_name()
+        system_data["cpu_name"] = string(Sys.CPU_NAME)
     catch
         system_data["cpu_name"] = "unknown"
     end
 
     try
-        # CPUSummary provides more detailed info
-        system_data["cpu_architecture"] = CPUSummary.cpu_architecture()
+        # Architecture info from Sys
+        system_data["cpu_architecture"] = string(Sys.ARCH)
     catch
         system_data["cpu_architecture"] = "unknown"
     end
@@ -227,7 +242,7 @@ function get_detailed_system_info()
     end
 
     try
-        system_data["blas_num_threads"] = CPUSummary.blas_num_threads()
+        system_data["blas_num_threads"] = LinearAlgebra.BLAS.get_num_threads()
     catch
         system_data["blas_num_threads"] = "unknown"
     end