THE JR PROGRAMMING LANGUAGE phần 3 pot

... body of the loop as long as one of the two numbers is not EOS . The if statement compares the two numbers, outputs the smaller, and receives the next number in the stream from which the smaller ... 64 Semaphores 6. 13 6.14 6.15 In the Barrier class (see the end of Section 6 .3) , why does the body contain a process? What would happen if the code for the coordinato...

Ngày tải lên: 12/08/2014, 13:22

... each of the other capabilities. 3. 2 Show the output from program Simple in Section 3. 3 given the following method declarations: EXTENSIONS FOR CONCURRENCY This part of the text introduces JR s mechanisms ... 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...

Ngày tải lên: 12/08/2014, 13:22

... in the following code: 14 .3 Selection Method Support Classes 199 the edu.ucdavis .jr package. These classes provide methods to facilitate the implementation of different selection algorithms. These ... 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...

Ngày tải lên: 12/08/2014, 13:22

... 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 have been found for all strips, they are connected together. 17. 13 Write ... 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 t...

Ngày tải lên: 12/08/2014, 13:22

... header that specifies the attributes and modifiers of the class, the name of the class, the base class (if any), and the interfaces implemented by the class. The header is followed by the class body, which ... 255 16 ushort 0 65, 535 32 uint 0 4,294,967,295 64 ulong 0 18,446,744,0 73, 709,551,615 Floating point 32 float 1.5 × 10 –45 to 3. 4 × 10 38 , 7-digit precision...

Ngày tải lên: 12/08/2014, 23:23

... 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

... 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 ... output whether the number exists in the tree or‚ if it was not found‚ the number in the node that determined it was not in the tree. Source files containing parts of this pr...

Ngày tải lên: 12/08/2014, 13:22

... visit the four cities in the following order: (1, 2, 3, 4), (1, 2, 4, 3) , (1, 3, 2, 4), (1, 3, 4, 2), (1, 4, 2, 3) , (1, 4, 3, 2) In the traveling salesman problem, the goal is to find the ... upward neighbors. The compute method starts up the computation in the Point objects and gathers the results from all the points. 16 .3 A Distributed Heartbeat Al...

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 ... value. The goal is for the processes to de- termine the minimum of the set. The processes repeatedly interact, with 20.2 BnB Code Overview 30 3 30 0 Interfacin...

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 ... has the following general form: The keyword receive, the parentheses, and the commas are JR tokens, so they are typeset in Courier. The items op_id and variable...

Ngày tải lên: 27/06/2014, 08:20