diff --git a/buildall.sh b/buildall.sh
new file mode 100644
index 0000000..b9c922f
--- /dev/null
+++ b/buildall.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+
+# HPC Lab 统一构建脚本
+# 使用 xmake 构建所有实验项目
+
+set -e  # 遇到错误立即退出
+
+SCRIPT_DIR="$(dirname "$0")"
+cd "$SCRIPT_DIR"
+
+# 检查 xmake 是否安装
+if ! command -v xmake &> /dev/null; then
+    echo "错误: xmake 未安装，请先安装 xmake"
+    echo "安装方法: curl -fsSL https://xmake.io/shget.text | bash"
+    exit 1
+fi
+
+echo "=========================================="
+echo "HPC Lab Code - 全项目构建"
+echo "=========================================="
+
+# 构建 lab1
+echo "构建 lab1..."
+cd lab1
+xmake
+cd ..
+
+# 构建 lab2/omp
+echo "构建 lab2/omp..."
+cd lab2/omp
+xmake
+cd ../..
+
+# 构建 lab2/pthread
+echo "构建 lab2/pthread..."
+cd lab2/pthread
+xmake
+cd ../..
+
+# 构建 lab3/nbody
+echo "构建 lab3/nbody..."
+cd lab3/nbody
+xmake
+cd ../..
+
+# 构建 lab3/prime
+echo "构建 lab3/prime..."
+cd lab3/prime
+xmake
+cd ../..
+
+# 构建 lab4
+echo "构建 lab4..."
+cd lab4
+xmake
+cd ..
+
+# 构建 work
+echo "构建 work..."
+cd work
+xmake
+cd ..
+
+echo "=========================================="
+echo "构建完成！"
+echo "=========================================="
diff --git a/lab1/lab1.sh b/lab1/lab1.sh
index 789889c..151698d 100755
--- a/lab1/lab1.sh
+++ b/lab1/lab1.sh
@@ -35,7 +35,7 @@ echo "Programs found. Starting tests..."
 
 # Test mpi_hello_world
 echo "Testing mpi_hello_world with default settings:"
-mpirun "$MPI_HELLO"
+mpirun --hostfile ~/mpi_hosts "$MPI_HELLO"
 echo "mpi_hello_world test completed."
 
 # Terms to test
@@ -48,7 +48,7 @@ echo "Testing mpi_pi with different terms and processes:"
 for procs in "${PROCS[@]}"; do
     for terms in "${TERMS[@]}"; do
         echo "Running mpi_pi with $procs processes and $terms terms:"
-        mpirun -np $procs "$MPI_PI" <<< $terms
+        mpirun --hostfile ~/mpi_hosts -np $procs "$MPI_PI" <<< $terms
         echo ""
     done
 done
diff --git a/work/run_experiments.sh b/work/run_experiments.sh
index 6b14baa..3f19d22 100755
--- a/work/run_experiments.sh
+++ b/work/run_experiments.sh
@@ -27,7 +27,7 @@ echo "M,N,K,Time_ms" > $SERIAL_OUTPUT
 MATRIX_SIZES="512 1024 2048 4096"
 
 # MPI进程数配置
-MPI_PROCESSES="1 2 4 9 16"
+MPI_PROCESSES="1 2 3 6 9 12"
 
 # OpenMP线程数配置
 OPENMP_THREADS="1 2 4 8"
@@ -75,7 +75,7 @@ for SIZE in $MATRIX_SIZES; do
     
     for NP in $MPI_PROCESSES; do
         echo "  MPI进程数: $NP"
-        TIME=$(mpirun --oversubscribe -np $NP $BUILD_DIR/gemm_parallel $SIZE $SIZE $SIZE | grep "mpi matmul:" | awk '{print $3}')
+        TIME=$(mpirun --hostfile ~/mpi_hosts --oversubscribe -np $NP $BUILD_DIR/gemm_parallel $SIZE $SIZE $SIZE | grep "mpi matmul:" | awk '{print $3}')
         
         if [ ! -z "$TIME" ]; then
             SPEEDUP=$(echo "scale=4; $SERIAL_TIME / $TIME" | bc)
@@ -106,7 +106,7 @@ for SIZE in $MATRIX_SIZES; do
             TOTAL_PROCS=$((NP * NTHREADS))
             echo "    MPI进程数: $NP (总处理器数: $TOTAL_PROCS)"
             
-            TIME=$(mpirun --oversubscribe -np $NP $BUILD_DIR/gemm_parallel $SIZE $SIZE $SIZE | grep "mpi matmul:" | awk '{print $3}')
+            TIME=$(mpirun --hostfile ~/mpi_hosts --oversubscribe -np $NP $BUILD_DIR/gemm_parallel $SIZE $SIZE $SIZE | grep "mpi matmul:" | awk '{print $3}')
             
             if [ ! -z "$TIME" ]; then
                 SPEEDUP=$(echo "scale=4; $SERIAL_TIME / $TIME" | bc)
@@ -144,7 +144,7 @@ for SIZE in $MATRIX_SIZES; do
         export OMP_NUM_THREADS=$NTHREADS
         echo "  MPI: $NP, OpenMP: $NTHREADS (总处理器: $TOTAL_PROCS)"
         
-        TIME=$(mpirun --oversubscribe -np $NP $BUILD_DIR/gemm_parallel $SIZE $SIZE $SIZE | grep "mpi matmul:" | awk '{print $3}')
+        TIME=$(mpirun --hostfile ~/mpi_hosts --oversubscribe -np $NP $BUILD_DIR/gemm_parallel $SIZE $SIZE $SIZE | grep "mpi matmul:" | awk '{print $3}')
         
         if [ ! -z "$TIME" ]; then
             SPEEDUP=$(echo "scale=4; $SERIAL_TIME / $TIME" | bc)
@@ -178,7 +178,7 @@ for SIZE in $MATRIX_SIZES; do
         export OMP_NUM_THREADS=$NTHREADS
         echo "  MPI: $NP, OpenMP: $NTHREADS (总处理器: $TOTAL_PROCS)"
 
-        TIME=$(mpirun --oversubscribe -np $NP $BUILD_DIR/gemm_optimized $SIZE $SIZE $SIZE | grep "optimized mpi matmul:" | awk '{print $4}')
+        TIME=$(mpirun --hostfile ~/mpi_hosts --oversubscribe -np $NP $BUILD_DIR/gemm_optimized $SIZE $SIZE $SIZE | grep "optimized mpi matmul:" | awk '{print $4}')
 
         if [ ! -z "$TIME" ]; then
             SPEEDUP=$(echo "scale=4; $SERIAL_TIME / $TIME" | bc)