THE JR PROGRAMMING LANGUAGE phần 7 ppt

... the other instances of Point in the same row and receives their elements of A. The compute process then sends its value of Brc to other instances of Point in the same column and receives their ... Worker, starts the computation, checks for termination, gathers the results from the workers, and returns the overall result to the invoker. 17. 2 Replicated Workers and a Bag...

Ngày tải lên: 12/08/2014, 13:22

... JR syntax. The key syntactic items we will use are summarized in the following table. 1 .7 Vocabulary and Notation 13 jr jrc jr_ rmic jrrun jrgo jrgox translates and executes a JR program translates a JR ... noted in the Preface, source code for all programming examples and the “given” parts of the programming exercises are available on the JR webpage. Preface JR...

Ngày tải lên: 12/08/2014, 13:22

... in their critical sections at the same time. Consider the values taken on by the turn variables in the Bakery2 pro- gram. Are these values bounded or can they become arbitrarily large? If they ... for the value 7. Run the code for the Race program several times to see whether a race condition actually occurs. (It may or may not depending on implementation factors.) Modify the...

Ngày tải lên: 12/08/2014, 13:22

... two others. Workers first interact with others that are distance 1 away, then distance 2 away, then distance 4 away, and so on. If there are n workers, the number of stages is the (ceiling of the) ... does the performance differ? Repeat part (b) but for the program from part (a). 7. 13 Copy the outline for the adaptive quadrature program (see Section 7. 7) into a file. (a) (b)...

Ngày tải lên: 12/08/2014, 13:22

... and then immediately requests the fork’s return. To reduce the number of messages exchanged, the request for the fork’s return could be combined with the passing of the fork. In particular, the ... on each virtual machine. The program outputs first the number 5—for the first writex (on the main virtual machine)—and then the number 10—for the second writex (on the...

Ngày tải lên: 12/08/2014, 13:22

... in the subclass is routed through the method associated with the ProcOp to determine whether or not the invocation will be passed on to a Worker object. If the invocation is not rejected by the ... operation a . The value of the first argument of the invocation is bound to parameter m during the execution of the block of code labeled “code for a”. Additional examples o...

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... tours from one end of the strip to the others. In odd-numbered strips the tours should go from the top to the bottom; in even-numbered strips they should go from the bottom to the top. Once tours ... communicate with each other. The main class and the results class are identical to those in the previous solution. See the previous sections for their code. As in the prev...

Ngày tải lên: 12/08/2014, 13:22

... of the ball. If the new location is at the top or the bottom of the board, it in effect makes the ball “bounce off” the border. If the new location of the ball is off the board to the left or the ... packages. Exercises 311 (i) (j) clicking the mouse within the board will move the box to the mouse’s location. (If the box is on a different board, the box sho...

Ngày tải lên: 12/08/2014, 13:22

... 143 7 Expressions 1 47 7. 1 Expression Classifications 1 47 7. 2 Operators 149 7. 3 Member Lookup 156 7. 4 Function Members 1 57 Hejlsberg.book Page vi Friday, October 10, 2003 7: 35 ... Contents vii 7. 5 Primary Expressions 170 7. 6 Unary Operators 193 7. 7 Arithmetic Operators 198 7. 8 Shift Operators 2 07 7. 9 Relational and Type-Testing Operator...

Ngày tải lên: 12/08/2014, 23:23

... Range/Precision Signed integral 8 sbyte –128 1 27 16 short –32 ,76 8 32 ,76 7 32 int –2,1 47, 483,648 2,1 47, 483,6 47 64 long –9,223, 372 ,036,854 ,77 5,808 9,223, 372 ,036,854 ,77 5,8 07 Category Description Hejlsberg.book ... in the second part of the book might change in the final release. We do, however, expect any such changes to be minor. Many people have been involved in the...

Ngày tải lên: 12/08/2014, 23:23