PPT Slide

C.9

FORTRAN

C FORM PARTIAL SUMS

C

SUBROUTINE PARSUM(A, B, N)

REAL A(N), B(N)

SUM = 0

DO 10 I = 1 , N

SUM = SUM + A(I)

B(I) = SUM

10 CONTINUE

RETURN

END

• scientific computation, real and complex

• easy-to-use, but powerful I/O facilities

• compilers for efficient parallel code

• lots of existing programs and libraries

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