From 2d1c510b49359270ad4241fcd32ed5111805c3bb Mon Sep 17 00:00:00 2001
From: yly <yly>
Date: Mon, 19 Jan 2026 22:25:14 +0800
Subject: [PATCH] lab1 done

---
 .gitignore     | 10 ++++++
 lab1/Makefile  | 22 ------------
 lab1/do_lab.sh | 97 --------------------------------------------------
 lab1/lab1.sh   | 58 ++++++++++++++++++++++++++++++
 lab1/xmake.lua | 92 +++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 160 insertions(+), 119 deletions(-)
 create mode 100644 .gitignore
 delete mode 100644 lab1/Makefile
 delete mode 100644 lab1/do_lab.sh
 create mode 100755 lab1/lab1.sh
 create mode 100644 lab1/xmake.lua

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0f7c7e0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,10 @@
+# Xmake cache
+.xmake/
+build/
+compile_commands.json
+# MacOS Cache
+.DS_Store
+# Vim swap files
+*.swp
+# Temporary files
+*~
\ No newline at end of file
diff --git a/lab1/Makefile b/lab1/Makefile
deleted file mode 100644
index 9c8f5f6..0000000
--- a/lab1/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-# Makefile for building mpi_hello_world from mpi_hello_world.c
-MPICC ?= mpicc
-MPIRUN ?= mpirun
-CFLAGS ?= -O2 -Wall
-SRC := mpi_hello_world.c serial_pi.c mpi_pi.c
-TARGET := $(basename $(SRC))
-
-.PHONY: all clean run
-
-all: $(TARGET)
-
-mpi_%: mpi_%.c
-	$(MPICC) $(CFLAGS) -o $@ $<
-
-serial_%: serial_%.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-run: $(TARGET)
-	$(MPIRUN) -np 4 ./$@
-
-clean:
-	rm -f $(TARGET)
diff --git a/lab1/do_lab.sh b/lab1/do_lab.sh
deleted file mode 100644
index de892a7..0000000
--- a/lab1/do_lab.sh
+++ /dev/null
@@ -1,97 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-# cd to the directory where this script lives
-cd "$(dirname "$0")"
-
-echo "Running make..."
-make
-
-# detect MPI launcher
-if command -v mpirun >/dev/null 2>&1; then
-    MPI_LAUNCHER=mpirun
-    MPI_FLAG="-np"
-elif command -v mpiexec >/dev/null 2>&1; then
-    MPI_LAUNCHER=mpiexec
-    MPI_FLAG="-n"
-else
-    echo "Error: neither mpirun nor mpiexec found in PATH." >&2
-    exit 2
-fi
-
-# detect number of processes (fallback to 4)
-if command -v nproc >/dev/null 2>&1; then
-    NP=$(nproc)
-elif [ -n "${NUMBER_OF_PROCESSORS-}" ]; then
-    NP=$NUMBER_OF_PROCESSORS
-else
-    NP=4
-fi
-
-echo "Using $MPI_LAUNCHER $MPI_FLAG $NP"
-
-# helper to measure elapsed "real" time (seconds) while also showing program output
-measure_time() {
-    local label="$1"; shift
-    local -a cmd=("$@")
-    echo "---- Running: $label ----"
-    echo "Command: ${cmd[*]}"
-
-    local outfile timefile
-    outfile=$(mktemp)
-    timefile=$(mktemp)
-
-    if command -v /usr/bin/time >/dev/null 2>&1; then
-        # /usr/bin/time prints real time with %e (seconds) into timefile
-        /usr/bin/time -f "%e" -o "$timefile" "${cmd[@]}" 2>&1 | tee "$outfile"
-        elapsed=$(<"$timefile")
-    else
-        # bash builtin time: capture stderr (which receives the timing) and stdout separately
-        TIMEFORMAT='%R'
-        { time "${cmd[@]}" 1> "$outfile"; } 2> "$timefile"
-        elapsed=$(<"$timefile")
-        # also print program output
-        cat "$outfile"
-    fi
-
-    rm -f "$outfile" "$timefile"
-    # normalize elapsed to a number (strip spaces)
-    echo "${elapsed//[[:space:]]/}"
-}
-
-# ensure executables exist
-for exe in mpi_hello_world mpi_pi serial_pi; do
-    if [ ! -x "./$exe" ]; then
-        echo "Error: executable ./$exe not found or not executable. Did make build it?" >&2
-        exit 3
-    fi
-done
-
-# run mpi_hello_world (show output, don't measure for comparison)
-echo "==> Executing mpi_hello_world"
-"$MPI_LAUNCHER" "$MPI_FLAG" "$NP" ./mpi_hello_world
-
-# measure mpi_pi
-mpi_elapsed=$(measure_time "mpi_pi" "$MPI_LAUNCHER" "$MPI_FLAG" "$NP" ./mpi_pi)
-
-# measure serial_pi
-serial_elapsed=$(measure_time "serial_pi" ./serial_pi)
-
-# compute comparison
-# protect against zero
-if awk "BEGIN{exit($mpi_elapsed <= 0)}"; then
-    echo "Error: measured mpi_pi time is zero or negative." >&2
-    exit 4
-fi
-
-speedup=$(awk -v s="$serial_elapsed" -v m="$mpi_elapsed" 'BEGIN{ if(m==0){print "inf"; exit} printf "%.3f", s/m }')
-diff=$(awk -v s="$serial_elapsed" -v m="$mpi_elapsed" 'BEGIN{printf "%.3f", s-m }')
-
-echo
-echo "Summary:"
-echo "  mpi_pi   time (s): $mpi_elapsed"
-echo "  serial_pi time (s): $serial_elapsed"
-echo "  Difference (serial - mpi) (s): $diff"
-echo "  Speedup (serial / mpi): $speedup x"
-
-exit 0
\ No newline at end of file
diff --git a/lab1/lab1.sh b/lab1/lab1.sh
new file mode 100755
index 0000000..5308d97
--- /dev/null
+++ b/lab1/lab1.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+
+echo "Current directory: $PWD"
+
+# Build directory
+BUILD_DIR="./build/linux/x86_64/release"
+
+# Programs
+MPI_HELLO="$BUILD_DIR/mpi_hello_world"
+MPI_PI="$BUILD_DIR/mpi_pi"
+SERIAL_PI="$BUILD_DIR/serial_pi"
+
+# Check if programs exist
+if [[ ! -f "$MPI_HELLO" ]]; then
+    echo "Error: $MPI_HELLO not found. Please build first."
+    exit 1
+fi
+if [[ ! -f "$MPI_PI" ]]; then
+    echo "Error: $MPI_PI not found. Please build first."
+    exit 1
+fi
+if [[ ! -f "$SERIAL_PI" ]]; then
+    echo "Error: $SERIAL_PI not found. Please build first."
+    exit 1
+fi
+
+echo "Programs found. Starting tests..."
+
+# Test mpi_hello_world
+echo "Testing mpi_hello_world with default settings:"
+mpirun "$MPI_HELLO"
+echo "mpi_hello_world test completed."
+
+# Terms to test
+TERMS=(1000 100000 1000000 10000000 1000000000)
+PROCS=(1 2 3 4 5 6)
+
+echo ""
+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" <<< $terms
+        echo ""
+    done
+done
+
+echo ""
+echo "Testing serial_pi with different terms:"
+
+for terms in "${TERMS[@]}"; do
+    echo "Running serial_pi with $terms terms:"
+    "$SERIAL_PI" <<< $terms
+    echo ""
+done
+
+echo "All tests completed."
diff --git a/lab1/xmake.lua b/lab1/xmake.lua
new file mode 100644
index 0000000..313d107
--- /dev/null
+++ b/lab1/xmake.lua
@@ -0,0 +1,92 @@
+add_rules("mode.debug", "mode.release")
+
+-- Find MPI package
+add_requires("mpi", {system = true})
+add_requires("mpi_cxx", {system = true})
+
+
+target("mpi_hello_world")
+    set_kind("binary")
+    add_files("mpi_hello_world.c")
+    add_packages("mpi")
+    add_packages("mpi_cxx")
+
+target("mpi_pi")
+    set_kind("binary")
+    add_files("mpi_pi.c")
+    add_packages("mpi")
+    add_packages("mpi_cxx")
+
+target("serial_pi")
+    set_kind("binary")
+    add_files("serial_pi.c")
+
+--
+-- If you want to known more usage about xmake, please see https://xmake.io
+--
+-- ## FAQ
+--
+-- You can enter the project directory firstly before building project.
+--
+--   $ cd projectdir
+--
+-- 1. How to build project?
+--
+--   $ xmake
+--
+-- 2. How to configure project?
+--
+--   $ xmake f -p [macosx|linux|iphoneos ..] -a [x86_64|i386|arm64 ..] -m [debug|release]
+--
+-- 3. Where is the build output directory?
+--
+--   The default output directory is `./build` and you can configure the output directory.
+--
+--   $ xmake f -o outputdir
+--   $ xmake
+--
+-- 4. How to run and debug target after building project?
+--
+--   $ xmake run [targetname]
+--   $ xmake run -d [targetname]
+--
+-- 5. How to install target to the system directory or other output directory?
+--
+--   $ xmake install
+--   $ xmake install -o installdir
+--
+-- 6. Add some frequently-used compilation flags in xmake.lua
+--
+-- @code
+--    -- add debug and release modes
+--    add_rules("mode.debug", "mode.release")
+--
+--    -- add macro definition
+--    add_defines("NDEBUG", "_GNU_SOURCE=1")
+--
+--    -- set warning all as error
+--    set_warnings("all", "error")
+--
+--    -- set language: c99, c++11
+--    set_languages("c99", "c++11")
+--
+--    -- set optimization: none, faster, fastest, smallest
+--    set_optimize("fastest")
+--
+--    -- add include search directories
+--    add_includedirs("/usr/include", "/usr/local/include")
+--
+--    -- add link libraries and search directories
+--    add_links("tbox")
+--    add_linkdirs("/usr/local/lib", "/usr/lib")
+--
+--    -- add system link libraries
+--    add_syslinks("z", "pthread")
+--
+--    -- add compilation and link flags
+--    add_cxflags("-stdnolib", "-fno-strict-aliasing")
+--    add_ldflags("-L/usr/local/lib", "-lpthread", {force = true})
+--
+-- @endcode
+--
+