flake.nix

@@ -20,6 +20,7 @@ in
       owl1  = mkConf "owl1";
       owl2  = mkConf "owl2";
       eudy  = mkConf "eudy";
+      koro  = mkConf "koro";
     };
 
     packages.x86_64-linux.hut = self.nixosConfigurations.hut.pkgs;

m/common/net.nix

@@ -63,7 +63,7 @@
       10.0.40.104             xeon04-ipmi0
       
       # Node Entry for node: xeon05 (ID=19)
-      10.0.40.5               xeon05 xeon05-eth0
+      10.0.40.5               koro xeon05 xeon05-eth0
       10.0.42.5               xeon05-ib0
       10.0.40.105             xeon05-ipmi0
       

m/common/ssh.nix

@@ -16,6 +16,7 @@
     "owl1".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMqMEXO0ApVsBA6yjmb0xP2kWyoPDIWxBB0Q3+QbHVhv";
     "owl2".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHurEYpQzNHqWYF6B9Pd7W8UPgF3BxEg0BvSbsA7BAdK";
     "eudy".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+WYPRRvZupqLAG0USKmd/juEPmisyyJaP8hAgYwXsG";
+    "koro".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIImiTFDbxyUYPumvm8C4mEnHfuvtBY1H8undtd6oDd67";
 
     "gitlab-internal.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF9arsAOSRB06hdy71oTvJHG2Mg8zfebADxpvc37lZo3";
     "bscpm03.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM2NuSUPsEhqz1j5b4Gqd+MWFnRqyqY57+xMvBUqHYUS";

m/koro/configuration.nix

@@ -0,0 +1,37 @@
+{ config, pkgs, lib, modulesPath, ... }:
+
+{
+  imports = [
+    ../common/main.nix
+    #(modulesPath + "/installer/netboot/netboot-minimal.nix")
+
+    ../eudy/cpufreq.nix
+    ../eudy/users.nix
+    ../eudy/slurm.nix
+    ./users.nix
+    ./kernel.nix
+  ];
+
+  # Select this using the ID to avoid mismatches
+  boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d5376d2";
+
+  # disable automatic garbage collector
+  nix.gc.automatic = lib.mkForce false;
+
+  # members of the tracing group can use the lttng-provided kernel events
+  # without root permissions
+  users.groups.tracing.members = [ "arocanon" ];
+
+  # set up both ethernet and infiniband ips
+  networking = {
+    hostName = "koro";
+    interfaces.eno1.ipv4.addresses = [ {
+      address = "10.0.40.5";
+      prefixLength = 24;
+    } ];
+    interfaces.ibp5s0.ipv4.addresses = [ {
+      address = "10.0.42.5";
+      prefixLength = 24;
+    } ];
+  };
+}

m/koro/kernel.nix

@@ -0,0 +1,64 @@
+{ pkgs, lib, ... }:
+
+let
+  kernel = nixos-fcsv4;
+
+  nixos-fcs-kernel = {gitCommit, lockStat ? false, preempt ? false, branch ? "fcs"}: pkgs.linuxPackagesFor (pkgs.buildLinux rec {
+    version = "6.2.8";
+    src = builtins.fetchGit {
+      url = "git@bscpm03.bsc.es:ompss-kernel/linux.git";
+      rev = gitCommit;
+      ref = branch;
+    };
+    structuredExtraConfig = with lib.kernel; {
+      # add general custom kernel options here
+    } // lib.optionalAttrs lockStat {
+      LOCK_STAT = yes;
+    } // lib.optionalAttrs preempt {
+      PREEMPT = lib.mkForce yes;
+      PREEMPT_VOLUNTARY = lib.mkForce no;
+    };
+    kernelPatches = [];
+    extraMeta.branch = lib.versions.majorMinor version;
+  });
+
+  nixos-fcsv1 = nixos-fcs-kernel {gitCommit = "bc11660676d3d68ce2459b9fb5d5e654e3f413be";};
+  nixos-fcsv2 = nixos-fcs-kernel {gitCommit = "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1";};
+  nixos-fcsv3 = nixos-fcs-kernel {gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";};
+  nixos-fcsv4 = nixos-fcs-kernel {gitCommit = "c94c3d946f33ac3e5782a02ee002cc1164c0cb4f";};
+
+  nixos-fcsv1-lockstat = nixos-fcs-kernel {
+    gitCommit = "bc11660676d3d68ce2459b9fb5d5e654e3f413be";
+    lockStat = true;
+  };
+  nixos-fcsv2-lockstat = nixos-fcs-kernel {
+    gitCommit = "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1";
+    lockStat = true;
+  };
+  nixos-fcsv3-lockstat = nixos-fcs-kernel {
+    gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";
+    lockStat = true;
+  };
+  nixos-fcsv3-lockstat-preempt = nixos-fcs-kernel {
+    gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";
+    lockStat = true;
+    preempt = true;
+  };
+  latest = pkgs.linuxPackages_latest;
+
+in {
+  imports = [
+    ../eudy/kernel/lttng.nix
+    ../eudy/kernel/perf.nix
+  ];
+  boot.kernelPackages = lib.mkForce kernel;
+
+  # disable all cpu mitigations
+  boot.kernelParams = [
+    "mitigations=off"
+  ];
+  
+  # enable memory overcommit, needed to build a taglibc system using nix after
+  # increasing the openblas memory footprint
+  boot.kernel.sysctl."vm.overcommit_memory" = lib.mkForce 1;
+}

m/koro/users.nix

@@ -0,0 +1,17 @@
+{ ... }:
+
+{
+  users.users = {
+    vlopez = {
+      uid = 4334;
+      isNormalUser = true;
+      home = "/home/Computational/vlopez";
+      description = "Victor López";
+      group = "Computational";
+      hashedPassword = "$6$0ZBkgIYE/renVqtt$1uWlJsb0FEezRVNoETTzZMx4X2SvWiOsKvi0ppWCRqI66S6TqMBXBdP4fcQyvRRBt0e4Z7opZIvvITBsEtO0f0";
+      openssh.authorizedKeys.keys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGMwlUZRf9jfG666Qa5Sb+KtEhXqkiMlBV2su3x/dXHq victor@arch"
+      ];
+    };
+  };
+}