Installing the Software and Configuring the Environment

Procedure

1. Upload the STREAM installation package STREAM-master.zip to the /home directory on a server.
2. Use PuTTY to log in to the server as the root user.
3. Run the following command to decompress the STREAM installation package:

   cd /home
   unzip STREAM-master.zip

4. Run the following command to go to the STREAM-master directory:

   cd STREAM-master

5. Run the following commands to modify the Makefile file:
   1. Open the file.

      vi Makefile

   2. Press i to enter the insert mode and edit the Makefile file.

      CC = gcc
      CFLAGS = -O2 -ftree-vectorize -fopenmp -DSTREAM_ARRAY_SIZE=96000000 -DNTIMES=100 -mcmodel=large
      #FC = gfortran
      #FFLAGS = -O3 -fopenmp -mcpu=native -ffp-contract=fast -fopenmp
      all: stream_c.exe

   3. Press Esc, type :wq!, and press Enter to save the file and exit.
6. Run the following command to perform compilation:

   make

   After the compilation is successful, the executable file stream_c.exe is generated in the current directory. You can run the ll command to view the file. Figure 1 shows the command output.

   Figure 1 Compilation result