relocation truncated to fit: R_X86_64_32

This is due to the status data is large than2G.

The problom can be solve by check the program and change thedimensions of array。 I check the program and find no problom in theprogram。

So the another way is to create more space for the program by using“-mcmodel=medium”。Then i changed the compile message ：g77 -o vel-mcmodel=medium vel_add.f the problem was solved。Congratulations！！！

不过一般是内存分配太大导致