PPT-dMazeRunner : Executing Perfectly Nested Loops on Dataflow Accelerators

Shail Dave 1 Youngbin Kim 2 Sasikanth Avancha 3 Kyoungwoo Lee 2 Aviral Shrivastava 1 1 Compiler Microarchitecture Lab Arizona State University 2 Department of Computer Science Yonsei University. In contrast with the exception of nested loops join execution of nested plans has found little interest Nested execution plans may result from a failure to flatten nested SQL expressions but just as likely are created by a query optimizer to exploit Chapter. 4. Repeated Tasks are for Computers. Think back to any very difficult quantitative problem that you had to solve in some science class. How long did it take?. How many times did you solve it?. 2 w1w2w3w4w1w2w3w4g1 (high byte)g2 (low byte)FFFFg5 (high byte)g6 (low byte)G (1 to 32)ABAB Figure 1. Skipjack cryptographic algorithm The application of the technique is demonstrated using the simp Efficient Pipelining of Nested Loops:Unroll-and-SquashDarin S. PetkovSubmitted to the Department of Electrical Engineering and Computer Scienceon December 20, 2000, in partial fulfillment ofthe requir (and the Naiad system). Frank McSherry. , Derek G. Murray,. Rebecca Isaacs, . Michael Isard. Microsoft Research, Silicon Valley. Data-parallel dataflow. 1. 2. 3. 4. 5. 1. 4. 2. 3. 6. 6. 5. A. B. C. D. Iteration. We’ve seen many places where repetition is necessary in a problem.. We’ve been using the for loop for that purpose. For loops are called . definite. loops because we know how many times the loop needs to be executed. CS303E: Elements of Computers and Programming. Nested Loops. Nested loops. occur when a loop has one or more other loops in its body. Outside loop variable is constant while the inside loop executes to completion. Yuan Lin. 1. , Yoonseo Choi. 1. , Scott Mahlke. 1. , Trevor Mudge. 1. , . Chaitali. Chakrabarti. 2. 1. Advanced Computer Architecture Lab, University of Michigan at Ann Arbor. 2. Department of Electrical Engineering, Arizona State University. Each time the outer loop is repeated, the inner loop starts from the beginning.. 1. WHAT ARE NESTED LOOPS. Dr. Soha S. Zaghloul . 2. . Analysis:. How to calculate the total scores of a single student?. Derek G. Murray. Michael Isard. Frank McSherry. Paul Barham. Rebecca Isaacs. Martín Abadi. Microsoft Research. 1. Batch processing. Stream processing. Graph processing. Timely dataflow. In. ⋈. #x. Frank McSherry. , Derek G. Murray,. Rebecca Isaacs, Michael Isard. Microsoft Research, Silicon Valley. Data-parallel dataflow. 1. 2. 3. 4. 5. 1. 4. 2. 3. 6. 6. 5. A. B. C. D. E. k1:. k2:. k3:. Data-parallel dataflow. One if statement inside another one. An if statement inside a loop. A loop inside an if statement. Control structures can be nested inside each other to any degree you need . Nested loops. The general principle of nesting loops is that the inner loop must completely finish its execution before the next iteration of the outer loop starts. Shamsa. Hassan . Alhassouni. For -G7. . What we will Learn today?. Understand Random concept. Understand for Loops. Understand . Nested Loops. Random. Random. Function. Description. Input(). Print (). To perform optimizations like constant propagation or dead code elimination, we must. Analyze program to find opportunities for performing optimizations safely. Transform program. Analysis is called .