coin300(3) Coin coin300(3)NAME
coin300 - New Features in Coin v3.0.0 To come.
New features for Coin v2.5.0 are here.
Version 3.1.3 Wed May 23 2012 coin300(3)
Check Out this Related Man Page
multithreading_support(3) Coin multithreading_support(3)NAME
multithreading_support - Multithreading Support in Coin The support in Coin for using multiple threads in application programs and the Coin
library itself, consists of two main features:
o Coin provides platform-independent thread-handling abstraction classes. These are classes that the application programmer can freely use
in her application code to start new threads, control their execution, work with mutexes and do other tasks related to handling multiple
threads.
The classes in question are SbThread, SbMutex, SbStorage, SbBarrier, SbCondVar, SbFifo, SbThreadAutoLock, SbRWMutex, and SbTypedStorage.
See their respective documentation for the detailed information.
The classes fully hides the system-specific implementation, which is either done on top of native Win32 (if on Microsoft Windows), or over
POSIX threads (on UNIX and UNIX-like systems).
o The other aspect of our multi-threading support is that Coin can be specially configured so that rendering traversals of the scene graph
are done in a thread-safe manner. This means e.g. that it is possible to have Coin render the scene in parallel on multiple CPUs for
multiple rendering pipes, to better take advantage of such high-end systems (like CAVE environments, for instance).
Thread-safe render traversals are off by default, because there is a small overhead involved which would make rendering (very) slightly
slower on single-threaded invocations.
To get a Coin library built with thread-safe rendering, one must actively re-configure Coin and build a special, local version. For
configure-based builds (UNIX and UNIX-like systems, or with Cygwin on Microsoft Windows) this is done with the option '--enable-threadsafe'
to Autoconf configure. For how to change the configuration and re-build with Visual Studio, get in touch with us at 'coin-
support@coin3d.org'.
There are some restrictions and other issues which it is important to be aware of:
o We do not yet provide any support for binding the multi-threaded rendering support into the SoQt / SoWin / etc GUI bindings, and neither
do we provide bindings against any specific library that handles multi-pipe rendering. This means the application programmer will have to
possess some expertise, and put in some effort, to be able to utilize multi-pipe rendering with Coin.
o Rendering traversals is currently the only operation which we publicly support to be thread-safe. There are other aspects of Coin that we
know are thread-safe, like most other action traversals beside just rendering, but we make no guarantees in this regard.
o Be careful about using a separate thread for changing Coin structures versus what is used for the application's GUI event thread.
We are aware of at least issues with Qt (and thereby SoQt), where you should not modify the scene graph in any way in a thread separate
from the main Qt thread. This because it will trigger operations where Qt is not thread-safe.
Since:
Coin 2.0
Version 3.1.3 Wed May 23 2012 multithreading_support(3)
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
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Policy Name: Policy1
Active: yes
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version info :
vi availabe with RHEL 5.4
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Note:
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Hi everyone,
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Ok onto business, my questions are-:
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Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
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Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
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headers_file=$2
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For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
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Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
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Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
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One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)