Difference between revisions of "Example pthread hello"

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(Using pthread_demo)
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{{todo|InProgress(12.11.13-12:03->JG+)|Jgreene|project=oe 4,oe 5,jg,md,InProgress}}
 
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This is a guide to the <code>pthread hello</code> C example project included in the EMAC OE SDK.
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This is a guide to the <code>pthread_hello</code> C example project included in the EMAC OE SDK.
  
 
This is a simple pthreads example application. A number of pthread nodes are created and each reports its existence by printing a hello message to the console.
 
This is a simple pthreads example application. A number of pthread nodes are created and each reports its existence by printing a hello message to the console.
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===Hardware Requirements===
 
===Hardware Requirements===
  
The <code>pthread hello</code> C example project has no special hardware requirements. It should run just fine on any system for which the project files can be successfully compiled.
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The <code>pthread_hello</code> C example project has no special hardware requirements. It should run just fine on any system for which the project files can be successfully compiled.
  
 
====Using <code>pthread_hello</code>====
 
====Using <code>pthread_hello</code>====
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<syntaxhighlight lang="text">
 
<syntaxhighlight lang="text">
root@PPCE7:/tmp# ./pthread_demo 3
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root@PPCE7:/tmp# ./p_hello 3
generating new random data
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Hello from node 0
generating new random data
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Hello from node 2
    reader: count = 0, data = 693451072
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Hello from node 1
generating new random data
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    reader: count = 1, data = 1195545710
 
generating new random data
 
    reader: count = 2, data = 462104121
 
 
</syntaxhighlight>
 
</syntaxhighlight>
  
 
==Summary==
 
==Summary==
  
The <code>pthread hello</code> C example project demonstrates how to use pthreads. For another example of pthread usage see [[example pthread demo]].
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The <code>pthread_hello</code> C example project demonstrates how to use pthreads. For another example of pthread usage see [[example pthread demo]].

Revision as of 12:51, 11 December 2013

TODO: {{#todo:InProgress(12.11.13-12:03->JG+)|Jgreene|oe 4,oe 5,jg,md,InProgress}}

This is a guide to the pthread_hello C example project included in the EMAC OE SDK.

This is a simple pthreads example application. A number of pthread nodes are created and each reports its existence by printing a hello message to the console.

The term pthread refers to POSIX Threads, a POSIX standard for threads.

Opening, Building and Uploading the Project Files

1. Open the C/C++ editing perspective.

stub

2. Open the fbench project files.

stub

3. Build the fbench project.

stub

4. Upload the fbench and ffbench executables to the target system.

stub

Usage and Behavior

Hardware Requirements

The pthread_hello C example project has no special hardware requirements. It should run just fine on any system for which the project files can be successfully compiled.

Using pthread_hello

./p_hello n

where n is number of threads

Usage Example

root@PPCE7:/tmp# ./p_hello 3
Hello from node 0
Hello from node 2
Hello from node 1

Summary

The pthread_hello C example project demonstrates how to use pthreads. For another example of pthread usage see example pthread demo.