Fix GPI-2 and enable TAGASPI

The rdma-core driver.h include is no longer installed:

 56dd87acd2

So ibv_read_sysfs_file() is not defined. As the symbols is still
distributed, we simply add the missing prototype manually.

Similarly, the gaspi_size_t gaspi_get_system_mem() function is not
available from the gaspi public headers, so we define it in the
max_mem.c test.

Fixes: rarias/bscpkgs#7

flake.nix

@@ -2,25 +2,16 @@
   inputs.nixpkgs.url = "nixpkgs";
 
   outputs = { self, nixpkgs, ...}:
-    let
+  let
+    pkgs = import nixpkgs {
       # For now we only support x86
       system = "x86_64-linux";
-      pkgs = import nixpkgs {
+      overlays = [ self.overlays.default ];
-        inherit system;
+    };
-        overlays = [ self.overlays.default ];
+  in
-      };
-    in
     {
       bscOverlay = import ./overlay.nix;
       overlays.default = self.bscOverlay;
-      # full nixpkgs with our overlay applied
+      legacyPackages.x86_64-linux = pkgs;
-      legacyPackages.${system} = pkgs;
-
-      hydraJobs = {
-        inherit (self.legacyPackages.${system}.bsc-ci) test pkgs;
-      };
-
-      # propagate nixpkgs lib, so we can do bscpkgs.lib
-      inherit (nixpkgs) lib;
     };
 }

overlay.nix

@@ -46,7 +46,6 @@ let
     stdenvClangOmpss2NodesOmpv = final.stdenv.override { cc = final.clangOmpss2NodesOmpv; allowedRequisites = null; };
     tagaspi = callPackage ./pkgs/tagaspi/default.nix { };
     tampi = callPackage ./pkgs/tampi/default.nix { };
-    tacuda = callPackage ./pkgs/tacuda/default.nix { };
     wxparaver = callPackage ./pkgs/paraver/default.nix { };
   };
 
@@ -89,9 +88,7 @@ in bscPkgs // {
       };
     };
 
-    pkgs = filterAttrs (_: isDerivation) bscPkgs;
+    pkgs = final.runCommand "ci-pkgs" { }
-
-    pkgsList = final.runCommand "ci-pkgs" { }
       "printf '%s\n' ${toString (collect isDerivation bscPkgs)} > $out";
 
     tests = final.runCommand "ci-tests" { }
@@ -99,7 +96,7 @@ in bscPkgs // {
 
     all = final.runCommand "ci-all" { }
     ''
-      deps="${toString [ final.bsc-ci.pkgsList final.bsc-ci.tests ]}"
+      deps="${toString [ final.bsc-ci.pkgs final.bsc-ci.tests ]}"
       cat $deps
       printf '%s\n' $deps > $out
     '';

pkgs/tacuda/default.nix

@@ -1,66 +0,0 @@
-{ stdenv
-, fetchFromGitHub
-, automake
-, autoconf
-, libtool
-, gnumake
-, autoreconfHook
-, boost
-, cudatoolkit
-
-, useGit ? false
-, gitUrl ? "git@gitlab-internal.bsc.es:task-awareness/tacuda/tacuda.git"
-, gitBranch ? "main"
-, gitCommit ? "35234f9445e6149a2bd38d119841e2485d6ee05e"
-}:
-
-let
-
-  release_ver = "2.1.0";
-  release = {
-    version = release_ver;
-    src = fetchFromGitHub {
-      owner = "bsc-pm";
-      repo = "tacuda";
-      rev = release_ver;
-      hash = "sha256-Cj3EiLVJSLvRv0ydeg7Vp4SpkniEqHkcWF+YOJQ8EcM=";
-    };
-  };
-
-  git = rec {
-    version = src.shortRev;
-    src = builtins.fetchGit {
-      url = gitUrl;
-      ref = gitBranch;
-      rev = gitCommit;
-    };
-  };
-
-  source = if (useGit) then git else release;
-
-in
-
-stdenv.mkDerivation {
-  pname = "tacuda";
-  inherit (source) src version;
-
-  enableParallelBuilding = true;
-  separateDebugInfo = true;
-
-  nativeBuildInputs = [
-    autoreconfHook
-    automake
-    autoconf
-    libtool
-    gnumake
-  ];
-
-  patches = [ ./fix_config.patch ];
-
-  configureFlags = [ "--with-cuda=${cudatoolkit}/lib" "--with-cuda-include=${cudatoolkit}/include" ];
-
-  buildInputs = [
-    boost
-  ];
-
-}

pkgs/tacuda/fix_config.patch

@@ -1,13 +0,0 @@
-diff --git a/m4/cuda.m4 b/m4/cuda.m4
-index 23f5c94..8f9b534 100644
---- a/m4/cuda.m4
-+++ b/m4/cuda.m4
-@@ -40,7 +40,7 @@ search_libs="cuda cublas cudart"
- required_libs=""
- 
- m4_foreach([function],
--           [cuInit,
-+           [
- 	    cublasSgemm,
-             cudaStreamCreate,
-             cudaLaunchKernel,