Loop Unrolling and Sum Reductions

• Tuned (4)

do i = 1, lda

do j = 1, lda, 4

a1 = a1 + b(j) * c(i)

a2 = a2 + b(j+1) * c(i)

a3 = a3 + b(j+2) * c(i)

a4 = a4 + b(j+3) * c(i)

enddo

enddo

aa = a1 + a2 +a3 + a4

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