Vector Architecture

• • Vectors will be loaded (loadv instruction) from memory
  • The performance is determined by memory bandwidth
  • Optimization takes vector length (64 words) into account

loadf f2,(r3) load scalar A(i,k)

loadv v3,(r3) load vector B(k,1:n)

mpyvs v3,v3,v2 calculate A(I,k)*B(k,1:n)

addvv v4,v4,v3 update C(I,1:n)

+ Accumulate C(1,1:n)

in a vector register

memory

DO i=1,n

DO k=1,n

C(i,1:n)=C(i,1:n) + A(i,k)*B(k,1:n)

ENDDO ENDDO

Vector Operation

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