diff --git a/ComputerSystems/Task 05：优化程序性能/并行计算（一）.pdf b/ComputerSystems/Task 05：优化程序性能/并行计算（一）.pdf
new file mode 100644
index 0000000..3a74e8b
Binary files /dev/null and b/ComputerSystems/Task 05：优化程序性能/并行计算（一）.pdf differ
diff --git a/ComputerSystems/Task 05：优化程序性能/并行计算（三）.pdf b/ComputerSystems/Task 05：优化程序性能/并行计算（三）.pdf
new file mode 100644
index 0000000..449dff9
Binary files /dev/null and b/ComputerSystems/Task 05：优化程序性能/并行计算（三）.pdf differ
diff --git a/ComputerSystems/Task 05：优化程序性能/并行计算（二）.pdf b/ComputerSystems/Task 05：优化程序性能/并行计算（二）.pdf
new file mode 100644
index 0000000..c1886fb
Binary files /dev/null and b/ComputerSystems/Task 05：优化程序性能/并行计算（二）.pdf differ