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The deviation between finite difference and analysis is large for LCAO stress

Open pxlxingliang opened this issue 6 months ago • 2 comments

Describe the Testing Issue

I have done the finite difference (FD) test of stress for NiMnTi with LCAO. The step of cell deform is 0.0001.

The deviation between FD and analysis is about 2 kbar, while in PW, the deviation is only about 0.15 kbar.

bohrium app job: https://bohrium.dp.tech/apps/abacustest/job?type=jobs&jobId=22571

bef1cb304ef16c25efa8954b987b1826__preview_type=16

PW: f7537462fe11504679421ba83b0953bf_28a03733-b84f-4c79-b5f2-739461e77dd2

Additional Context

No response

Task list for Issue attackers (only for developers)

  • [ ] Understand the testing issue described by the developer.
  • [ ] Review the specific test case, expected and actual results, and any error messages.
  • [ ] Identify the root cause of the test failure or issue.
  • [ ] If a possible solution is suggested, evaluate its feasibility and effectiveness.
  • [ ] Implement a fix for the test failure or issue, or create a new test case if needed.
  • [ ] Verify that the fix resolves the testing issue and the test case passes.
  • [ ] Review and update any relevant documentation, such as test plans or user guides.
  • [ ] Ensure the testing issue is resolved and close the ticket.
  • [ ] Share any lessons learned or best practices with the team to prevent similar issues in the future.

pxlxingliang avatar Aug 15 '24 06:08 pxlxingliang