Difference between revisions of "Category:Support"

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=== Compatibility with Previous Releases ===
 
=== Compatibility with Previous Releases ===
  
Projects and notes from previous releases (from release 2012.1 on) are compatible and supported in version 2015.1.
+
Projects and notes from previous releases (from release 2012.1 on) are compatible and supported in the latest version.
  
 
{{M-Note|To use older projects (or notes), copy them into the appropriate 2015.1 project (or notes) folder.}}
 
{{M-Note|To use older projects (or notes), copy them into the appropriate 2015.1 project (or notes) folder.}}

Revision as of 12:28, 5 March 2015

Support Portal

Support-banner-gears.png

For information on Digital Vision support availability, including contact details and contracts, please see the support area of the main web site.

General Notes

Compatibility with Previous Releases

Projects and notes from previous releases (from release 2012.1 on) are compatible and supported in the latest version.

To use older projects (or notes), copy them into the appropriate 2015.1 project (or notes) folder.

Projects and notes from the current release are not compatible in previous versions. Once opened in the latest release, you should not open a project in any older release (even the last) or project damage might result.

Memory Settings

This release is 64 bit and can take advantage of all available memory on the system.

Application memory usage is controlled using the preference setting memoryImagePoolMaxMB (in megabytes). New installations will set this parameter to TOTAL RAM - 6 GB by default but you may want to change this. You can change this through editing the preference file or in the GUI Preferences / Rendering : Image memory :

Parameter Default Alternative
memoryImagePoolMaxMB RAM - 6 GB RAM - 4 GB

Examples :

RAM memoryImagePoolMaxMB
12 8096
48 44000

You may need to experiment to determine best settings for your workload. Note that this discussion assumes no other application is running at the same time as ours. In particular, any external helper applications such as Apple Quicktime or Avid will also allocate and require their own memory areas.

Thread Settings

There are two thread preference settings available. The recommended settings are :

Parameter Value
renderFrameThreads Number of CPU Cores (see below)
renderTileThreads 1

These recommendations are set automatically on fresh new installs of the latest version where a preference file does not exist. If the preferences exist, the settings inside will be used. It is best to let the application create a brand new preference file by moving any existing one out of the way.

The renderFrameThreads and renderTileThreads parameters are available in the preference file and via the GUI Preferences / Rendering section.

If the application starts running out of memory for rendering, one way to mitigate this is to try reducing the number of Frame threads.

Optimising Performance and Threading

These thread settings may not be optimal for your specific workflow. For best performance, you should analyse and benchmark your workflow using a variety of thread settings and select the settings that work best for you.

Optimising threads can have a big impact on render speed so it is a good idea to undertake some tests before starting a job.

To determine the number of cores and an optimal value for renderFrameThreads, see the FAQ.

DPX Compatibility

There are some DPX specific compatibility settings you can add to the Clip.prefs file (in your ROOT folder) :

DPX
{
    luma10PadLines BOOLEAN
    luma10MSBFirst BOOLEAN
    RGB12as2011 BOOLEAN
}

Where BOOLEAN can be "true" or "false" (without the quotes).

Parameter Note Default
RGB12as2011 Compatibility mode for 12 bit packed RGB DPX images. If set to "true", uses previous mechanism for creating these files (2011 and earlier). false
luma10PadLines 10 bit luma packing mode. If set to "true", pack luma scan lines to 32 bit boundaries. true
luma10MSBFirst 10 but luma packing style. Id set to "true", first pixel if placed in MSB (most significant bit) of the 32 bit word. false

{{M-Note|Compatibility with 2011.2

For complete compatibility with version 2011.2 and earlier, you should set :

DPX
{
    luma10PadLines false
    luma10MSBFirst true
    RGB12as2011 true
}

GPU Direct

GPU Direct is disabled by default in current releases and should only be enabled for testing purposes (and feedback).

GPU Direct is an NVIDIA mechanism that allows a more efficient use of system resources when using an SDI video board with an NVIDIA graphics card. This feature is considered beta currently and we have disabled it by default. To enable and test, see below. Feedback is welcome but please see the Known Issues section in the release notes post install.

To enable GPU Direct, set the following option in your preferences (inside the IOCard section) :

IOCard {
  enableGpuDirect true
} 

GPU Direct is supported by all DVS video boards except the Centaurus2.