|
<< Click to Display Table of Contents >> Navigation: Tomography > Set multi line tomo item |
Set multi line tomo item assembles a multi-line tomography dataset by collecting individual tomo items from multiple 2D seismic lines or by loading them from files on disk. This module is a prerequisite for multi-line stereo tomography: before running the multi-line or 3D stereo tomography solver, all per-line tomo items must be merged into a single multi-line container using this module. Each line contribution is associated with its velocity model and tomo parameter file, and duplicate lines can optionally be checked and overwritten.
The multi-line tomo item container that accumulates all input lines. Connect the output of a previous Set multi line tomo item step, or leave disconnected to start a new container. Use the Clear item custom action to reset this container before re-populating it.
Specifies how the tomo data for the current line is provided. Default: Item. Item reads from a tomo item connected in the Input tomography item slot; Files (old) loads pairs of SEG-Y velocity files and legacy .gitem tomo files specified in the Input files velocity and Input files tomography lists; Tomo files loads from the current .gitem tomo file format listed in Input files tomography.
List of SEG-Y (.sgy / .segy) velocity model files, one per line, to load when Input data type is Files (old). Add one file per seismic line in the multi-line survey.
List of legacy tomo parameter files (.gitem) corresponding to the velocity files listed in Input files velocity. Used when Input data type is Files (old).
List of tomo parameter files (.gitem) to load when Input data type is Tomo files. These are the current-format tomo files produced by the PSDM Imaging or other tomo creation modules.
Single-line tomo item produced by PSDM Imaging (Create tomo parameters action). Connect from the tomo output of the imaging module for the line being added. Active when Input data type is Item.
When enabled (default), the module checks whether a line with the same name already exists in the multi-line container before adding the new data. If a duplicate is found, behaviour is controlled by the Rewrite identical parameter. Disable if line names are guaranteed to be unique to skip the check and speed processing.
When enabled and Check identical lines detects a duplicate, the existing line entry in the container is overwritten with the new data. Default: off (duplicate lines are skipped). Enable when re-running a single line in an existing multi-line dataset to update its tomo parameters without clearing the whole container.
Selects the processing device. For this module, CPU is sufficient as the operation is primarily I/O and data assembly.
Configuration for distributed (cluster) execution.
Minimum number of gathers sent per chunk during distributed execution.
When enabled, restricts CPU threads per cluster node to the value in Number of threads.
Optional text appended to the distributed job name.
When enabled, applies the CPU affinity mask specified in Affinity.
CPU affinity mask applied when Set custom affinity is enabled.
Maximum number of CPU threads used during execution.
When enabled, this module is bypassed and data passes through unchanged.
Clears all lines currently stored in the multi-line tomo item container. Use before re-populating the container from scratch when reprocessing the dataset.