Name: cs598dhp Parallel Processing Midterm Exam Due in ... - Polaris

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7. OpenMP [5 pts.] For each of the following three loop nests, specify whether or notthe outermost loop can be transformed into parallel form without changing the loopbody. If the answer is no, state the reason(a) do i=1,ndo j=1,na(i,j) = a(i,j-1) + 1b(i,j) = a(i,j) + a(i,j)end doend do(b) do i=1,ndo j=1,na(i,j) = a(i-1,j-1) + 1end doend do(c) do i=1,ndo j=1,na(i,j) = a(i-1,n+1) + 1b(i,j) = a(i-1,j) + a(i,j)end doend do8
8. Race conditions [5 pts.] In the following four code segments, identify whether ornot there are race conditions. In each case, explain why or why not and list all raceconditions you can detect. Also, indicate what directives need to be inserted in eachcase to get rid of the race conditions.(a)c$ompc$ompc$ompc$ompc$ompc$ompparallel private(i)pdodo i=1,nx(i)=x(i)+1end doend pdo nowaitpdodo i=1,ny(i)=x(i) + 1end doend pdo nowaitend parallel9
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Page 3 and 4: 2. Paging [5 pts.] Consider the loo
Page 5 and 6: 4. SIMD programs [5 pts.] Consider
Page 7: 6. OpenMP [5 pts.] Parallelize (as
Page 11: (c)c$ompparallel dodo i=1,na(i)=b(i

Name: cs598dhp Parallel Processing Midterm Exam Due in ... - Polaris

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