Difference between revisions of "Fork Loop Assignment"
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===toSquareRoots=== | ===toSquareRoots=== | ||
{{Parallel|public static Double[] toSquareRoots(Double[] values)}} | {{Parallel|public static Double[] toSquareRoots(Double[] values)}} | ||
+ | |||
+ | <code>toSquareRoots</code> accepts an array parameter and returns an array. | ||
+ | |||
+ | [https://www.cse.wustl.edu/~dennis.cosgrove/courses/cse231/current/apidocs/fj/FJ.html#join_fork_loop(java.lang.Class,T%5B%5D,fj.api.TaskFunction) join_fork_loop(returnValueComponentType, array, task)] will perform exactly what we want, but we need to also pass the component type of the array return type. | ||
+ | |||
+ | What is the component type of Double[]? | ||
+ | |||
+ | {{Spoiler|<code>Double.class</code>}} | ||
+ | |||
===client=== | ===client=== | ||
{{CodeToInvestigate|SquareRootClient|main|forkloop.client|main}} | {{CodeToInvestigate|SquareRootClient|main|forkloop.client|main}} |
Revision as of 02:56, 29 January 2023
Contents
Motivation
There are many incantations of the fork_loop. We gain experience with selecting the right one for two scenarios.
Background
Code To Use
FJ<E>
class FJ<E>
Code To Implement
Echoes
class: | Echoes.java | |
methods: | toEchoes | |
package: | forkloop.group | |
source folder: | student/src/main/java |
toEchoes
method: public static List<String> toEchoes(List<String> texts)
(parallel implementation required)
for each text in parallel, produce text + " " + text
.
toEchoes
accepts a List<String> parameter and returns a List<String>.
List<E> is an Iterable<E>, so instances of List<E> can be passed to join_fork_loop(iterable, task).
client
class: | EchoClient.java | DEMO: |
methods: | main | |
package: | forkloop.client | |
source folder: | src/main/java |
SquareRoots
class: | SquareRoots.java | |
methods: | toSquareRoots | |
package: | forkloop.group | |
source folder: | student/src/main/java |
toSquareRoots
method: public static Double[] toSquareRoots(Double[] values)
(parallel implementation required)
toSquareRoots
accepts an array parameter and returns an array.
join_fork_loop(returnValueComponentType, array, task) will perform exactly what we want, but we need to also pass the component type of the array return type.
What is the component type of Double[]?
Spoiler |
Double.class
|
client
class: | SquareRootClient.java | DEMO: |
methods: | main | |
package: | forkloop.client | |
source folder: | src/main/java |
Testing
class: | _ForkLoopTestSuite.java | |
package: | forkloop.group | |
source folder: | testing/src/test/java |