.

set_ssh_without_password.sh

@@ -0,0 +1,98 @@
+test@tn01:~$ cat setup_ssh_nopass.sh
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+usage() {
+  cat <<'USAGE'
+用法:
+  setup_ssh_nopass.sh [-u 远端用户] [-p 端口] [-k 私钥路径] 主机
+  或者:
+  setup_ssh_nopass.sh 用户@主机 [-p 端口] [-k 私钥路径]
+
+示例:
+  setup_ssh_nopass.sh -u root -p 22 192.168.1.10
+  setup_ssh_nopass.sh alice@server.example.com
+USAGE
+}
+
+REMOTE_USER="${USER}"
+PORT=22
+KEY_PATH="${HOME}/.ssh/id_ed25519"
+
+# 解析形如 user@host 的参数
+parse_user_host() {
+  local s="$1"
+  if [[ "$s" == *"@"* ]]; then
+    REMOTE_USER="${s%@*}"
+    HOST="${s#*@}"
+  else
+    HOST="$s"
+  fi
+}
+
+# 参数
+while getopts ":u:p:k:h" opt; do
+  case "$opt" in
+    u) REMOTE_USER="$OPTARG" ;;
+    p) PORT="$OPTARG" ;;
+    k) KEY_PATH="$OPTARG" ;;
+    h) usage; exit 0 ;;
+    \?) echo "未知选项: -$OPTARG" >&2; usage; exit 2 ;;
+    :)  echo "选项 -$OPTARG 需要参数" >&2; usage; exit 2 ;;
+  esac
+done
+shift $((OPTIND-1))
+[[ $# -ge 1 ]] || { usage; exit 2; }
+
+parse_user_host "$1"
+
+# 生成密钥（若不存在）
+if [[ ! -f "$KEY_PATH" ]]; then
+  mkdir -p "$(dirname "$KEY_PATH")"
+  ssh-keygen -t ed25519 -a 100 -N "" \
+    -C "${USER}@$(hostname -f 2>/dev/null || hostname)-$(date +%Y%m%d)" \
+    -f "$KEY_PATH"
+fi
+chmod 600 "$KEY_PATH" || true
+
+PUB_KEY_CONTENT="$(cat "${KEY_PATH}.pub")"
+PUB_KEY_B64="$(base64 -w0 2>/dev/null < "${KEY_PATH}.pub" || base64 < "${KEY_PATH}.pub" | tr -d '\n')"
+
+# 可选：预先抓取远端主机指纹，避免交互确认（注意：生产环境请先核对指纹！）
+mkdir -p "${HOME}/.ssh"
+touch "${HOME}/.ssh/known_hosts"
+if command -v ssh-keyscan >/dev/null 2>&1; then
+  ssh-keyscan -p "$PORT" -H "$HOST" >> "${HOME}/.ssh/known_hosts" 2>/dev/null || true
+fi
+
+# 把公钥追加到远端 authorized_keys（去重、修权限、SELinux 兼容）
+ssh -p "$PORT" "${REMOTE_USER}@${HOST}" bash -s <<'REMOTE' "$PUB_KEY_B64"
+set -Eeuo pipefail
+PUB_B64="$1"
+umask 077
+mkdir -p "$HOME/.ssh"
+touch "$HOME/.ssh/authorized_keys"
+chmod 700 "$HOME/.ssh"
+chmod 600 "$HOME/.ssh/authorized_keys"
+
+# 解码公钥并去重追加
+PUB_DEC="$(printf '%s' "$PUB_B64" | (base64 -d 2>/dev/null || openssl base64 -d))"
+if ! grep -qxF "$PUB_DEC" "$HOME/.ssh/authorized_keys"; then
+  printf '%s\n' "$PUB_DEC" >> "$HOME/.ssh/authorized_keys"
+fi
+
+# SELinux 环境修复上下文（如有）
+command -v restorecon >/dev/null 2>&1 && restorecon -R "$HOME/.ssh" || true
+REMOTE
+
+# 自检免密是否生效
+if ssh -p "$PORT" -o BatchMode=yes -o PasswordAuthentication=no \
+     "${REMOTE_USER}@${HOST}" 'echo OK' 2>/dev/null | grep -qx 'OK'; then
+  echo "✅ 已配置免密：${REMOTE_USER}@${HOST}（端口 ${PORT}） 使用密钥 ${KEY_PATH}"
+else
+  echo "⚠️ 看起来免密未生效。请检查远端 /etc/ssh/sshd_config 中的以下项："
+  echo "   PubkeyAuthentication yes"
+  echo "   AuthorizedKeysFile .ssh/authorized_keys"
+  echo "   （如果远端禁止密码登录，首次安装密钥需用其他方式复制过去）"
+  exit 1
+fi

test_mpi_all.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+NODES=(tn01 tn02 tn03 tn04 tn05 tn06)
+OSU=/home/test/osu-micro-benchmarks-7.5.1/build/c/mpi/pt2pt/standard/osu_bw
+
+for ((i=0; i<${#NODES[@]}; i++)); do
+  for ((j=i+1; j<${#NODES[@]}; j++)); do
+    A=${NODES[$i]}
+    B=${NODES[$j]}
+    echo "▶ Testing $A <-> $B"
+    mpirun --bind-to none \
+           --mca pml ucx \
+           --mca osc ucx \
+           --mca btl ^tcp,sm,vader \
+           --mca ucx_net_devices mlx4_0:1 \
+           -np 2 -H $A,$B \
+           $OSU
+    echo ""
+  done
+done