Simplify findMatch in intel-oneapi 2023

This should be a noop

overlay.nix

@@ -24,6 +24,7 @@ let
     intelPackages_2024 = final.intel-apt.hpckit_2024;
     intelPackages_2025 = final.intel-apt.hpckit_2025;
     intelPackages = final.intelPackages_2025;
+    oneMath = callPackage ./pkgs/onemath/default.nix { };
     jemallocNanos6 = callPackage ./pkgs/nanos6/jemalloc.nix { };
     lmbench = callPackage ./pkgs/lmbench/default.nix { };
     mcxx = callPackage ./pkgs/mcxx/default.nix { };

pkgs/intel-oneapi/2023.nix

@@ -47,40 +47,31 @@ let
     installPhase = ''
       awk -F': ' '\
         BEGIN   { print "[ {" } \
-        NR>1 && /^Package: / { print "} {"; } \
+        NF==0 { empty=1; } \
+        NF && empty { print "} {"; empty=0; } \
         /: /    { printf "%s = \"%s\";\n", $1, $2 } \
         END     { print "} ]" }' $srcs > $out
     '';
   };
 
-  aptPackages = import aptPackageIndex;
-
-  apthost = "https://apt.repos.intel.com/oneapi/";
-
-  getSum = pkgList: name:
+  findMatch = name:
   let
-    matches = lib.filter (x: name == x.Package) pkgList;
-    #n = lib.length matches;
-    #match = builtins.trace (name + " -- ${builtins.toString n}") (lib.elemAt matches 0);
-    match = lib.elemAt matches 0;
-  in
-    match.SHA256;
-
-  getUrl = pkgList: name:
-  let
-    matches = lib.filter (x: name == x.Package) pkgList;
-    #match = assert lib.length matches == 1; lib.elemAt matches 0;
+    aptPackages = import aptPackageIndex;
+    matches = lib.filter (x: name == x.Package) aptPackages;
     n = lib.length matches;
-    match =
-      #builtins.trace (name + " -- n=${builtins.toString n}")
-      (lib.elemAt matches 0);
+    match = builtins.traceVerbose (name + " -- ${builtins.toString n}") (builtins.head matches);
+
+    apthost = "https://apt.repos.intel.com/oneapi/";
   in
-    apthost + match.Filename;
+    {
+      url = apthost + match.Filename;
+      sha256 = match.SHA256;
+    };
 
   uncompressDebs = debs: name: stdenv.mkDerivation {
     name = name;
     srcs = debs;
-    buildInputs = [ dpkg ];
+    nativeBuildInputs = [ dpkg ];
     phases = [ "installPhase" ];
     installPhase = ''
       mkdir -p $out
@@ -93,10 +84,7 @@ let
 
   joinDebs = name: names:
   let
-    urls = builtins.map (x: getUrl aptPackages x) names;
-    sums = builtins.map (x: getSum aptPackages x) names;
-    getsrc = url: sha256: builtins.fetchurl { inherit url sha256; };
-    debs = lib.zipListsWith getsrc urls sums;
+    debs = builtins.map (x: builtins.fetchurl (findMatch x)) names;
   in
     uncompressDebs debs "${name}-source";
 
@@ -453,7 +441,7 @@ let
     '';
   };
 
-  ifort-wrapper = wrapIntel rec {
+  ifort-wrapper = wrapIntel {
     cc = intel-compiler-fortran;
     mygcc = gcc;
     extraBuild = ''

pkgs/onemath/default.nix

@@ -0,0 +1,73 @@
+{ lib
+, intelPackages
+, withCFlags
+, fetchFromGitHub
+, cmake
+, cudaPackages
+, enableNvidia ? true
+, withHipTargets ? null # only one target at a time supported
+, rocmPackages
+, enableMkl ? true
+}:
+
+let
+  enableHip = withHipTargets != null;
+
+  stdenv = withCFlags (lib.optionals enableNvidia [ "--cuda-path=${cudaPackages.cudatoolkit}" ]) intelPackages.stdenv;
+in
+stdenv.mkDerivation rec {
+  pname = "oneMath";
+  version = "0.7";
+
+  src = fetchFromGitHub {
+    owner = "uxlfoundation";
+    repo = "oneMath";
+    rev = "v${version}";
+    sha256 = "sha256-De04PUmI68Jx4rJ+MRb+RepayZCapgnouCUCrAu6G38=";
+  };
+
+  cmakeFlags = [
+    (lib.cmakeBool "ENABLE_MKLCPU_BACKEND"    enableMkl)
+    (lib.cmakeBool "ENABLE_MKLGPU_BACKEND"    enableMkl)
+
+    (lib.cmakeBool "ENABLE_CUBLAS_BACKEND"    enableNvidia)
+    (lib.cmakeBool "ENABLE_CUFFT_BACKEND"     enableNvidia)
+    (lib.cmakeBool "ENABLE_CURAND_BACKEND"    enableNvidia)
+    (lib.cmakeBool "ENABLE_CUSOLVER_BACKEND"  enableNvidia)
+    (lib.cmakeBool "ENABLE_CUSPARSE_BACKEND"  enableNvidia)
+
+    (lib.cmakeBool "ENABLE_ROCBLAS_BACKEND"   enableHip)
+    (lib.cmakeBool "ENABLE_ROCFFT_BACKEND"    enableHip)
+    (lib.cmakeBool "ENABLE_ROCSOLVER_BACKEND" enableHip)
+    (lib.cmakeBool "ENABLE_ROCRAND_BACKEND"   enableHip)
+    (lib.cmakeBool "ENABLE_ROCSPARSE_BACKEND" enableHip)
+
+    (lib.cmakeBool "BUILD_FUNCTIONAL_TESTS" false)
+    (lib.cmakeBool "BUILD_EXAMPLES" false)
+  ] ++ lib.optionals enableHip [
+    (lib.cmakeFeature "HIP_TARGETS" withHipTargets)
+  ];
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = lib.optionals (enableMkl) [
+    intelPackages.mkl
+    intelPackages.tbb
+  ] ++ lib.optionals (enableHip) [
+    rocmPackages.rocmPath
+    rocmPackages.rocblas
+    rocmPackages.rocfft
+    rocmPackages.rocsolver
+    rocmPackages.rocrand
+    rocmPackages.rocsparse
+  ] ++ lib.optionals (enableNvidia) [
+    (lib.getDev cudaPackages.cuda_cudart)
+    cudaPackages.cudatoolkit
+
+    cudaPackages.libcublas
+    cudaPackages.libcurand
+    cudaPackages.libcufft
+    cudaPackages.libcusparse
+    cudaPackages.libcusolver
+  ];
+
+}