Performing a Single-Node STREAM Test

Procedure

1. Run the following command to configure OMP environment variable: If you exit PuTTY, log in to the server as the root user again.

   export OMP_NUM_THREADS=96

   

   96 indicates the total number of cores of a single TaiShan server.

2. Run the following command to disable Transparent Huge Page (THP):

   echo never > /sys/kernel/mm/transparent_hugepage/enabled
   echo never > /sys/kernel/mm/transparent_hugepage/defrag

3. Run the following command to start the single-node STREAM test:

   cd /home/STREAM-master
   ./stream_c.exe

4. Check the read/write bandwidth performance of the Copy, Scale, Add, and Triad operations in the Best Rate MB/s column.
   Figure 1 shows an example of the test result.

   Figure 1 Test result example