Loading...

Change Owns to Parent Ofs

Set start and due date...

Xporter

XML

Word

Printable

Details

Type: Feature
Priority: Not Assigned
Fix Version/s: PI3
Component/s: COM SDP SW, COM Support & Simulation Tools
Labels:
- Team_YANDA
- Yanda_Algorithmic

ARTs:

Data Processing
Benefit hypothesis:

Hide

The performance improvement and memory reduction from O(n**2) to O( n) has large potential impact on cost.

Show
The performance improvement and memory reduction from O(n**2) to O( n) has large potential impact on cost.
Acceptance criteria:

Hide

Estimate impact on overall computational cost
Estimate impact on science data quality.

Show
Estimate impact on overall computational cost Estimate impact on science data quality.
Epic Link:
Instrumental Simulations
Agile Teams:

Team_YANDA
Due Sprint:
Sprint 5
Story Point Burn-up:
Overdue:
Outcomes:

Hide

In summary, the LSQR solver has quadratic performance with the number of antennas, and linear performance with the number of channels, as theoretically predicted; its memory consumption is also linear as expected. The SVD solver has major performance issues.

Also, the building of the normal equations while scales quadratically with the number of antennas as expected, takes an order of magnitude longer time than solving them. The future work can be focused on improving this part.

Show
In summary, the LSQR solver has quadratic performance with the number of antennas, and linear performance with the number of channels, as theoretically predicted; its memory consumption is also linear as expected. The SVD solver has major performance issues. Also, the building of the normal equations while scales quadratically with the number of antennas as expected, takes an order of magnitude longer time than solving them. The future work can be focused on improving this part.
Resolved PI.Sprint:
3.6

Requirement Status:

PI24 - UNCOVERED

Description

Comparison of Yandasoft calibration solver against other implementations.

SDPCDR-238, SDPCDR-300

At this stage it was decided to compare the new Yandasoft calibration solver performance with available in literature performance data for other solvers (likes e.g. StefCal).

Attachments

Issue Links

depends on

SP-384 Regularized Calibration Solver

Done

mentioned in: Page Loading...; Page Loading...; Page Loading...; Page Loading...; Page Loading...; Page Loading...

(2 mentioned in)

Structure

Activity

People

Assignee:: Laing, Robert

Reporter:: Dolensky, Markus [X] (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Feature Progress

Story Point Burn-up: (100.00%)

Feature Estimate: 0.0

	Issues	Story Points
To Do	0	0.0
In Progress	0	0.0
Complete	7	25.0
Total	7	25.0

Dates

Created:: 09/May/19 3:35 AM

Updated:: 18/Sep/24 5:27 PM

Resolved:: 06/Sep/19 8:23 AM

Comparison of Solvers