read_fds
breaks1 = read_fds(fd1, nprocs);
breaks2 = read_fds(fd2, nprocs);
breaks1 = read_fds(fd1, nprocs);
breaks2 = read_fds(fd2, nprocs);
breaks1 = read_fds(fd1, nprocs);
breaks2 = read_fds(fd2, nprocs);
breaks1 = read_fds(fd1, nprocs);
breaks2 = read_fds(fd2, nprocs);