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Feature: Make BPCG support band parallelism #5873

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@Qianruipku Qianruipku commented Jan 21, 2025

Arrange the order in read_input
Change the name about band parallel communication world.
Fix #5871
Make BPCG support band parallelism (bndpar > 1)
Make sDFT support BPCG with bndpar > 1
Make GPU support sDFT with BPCG and bndpar > 1
Fix BPCG's bug of using uninitialized values and update 102_PW_BPCG
Add integral tests for new features

@Qianruipku Qianruipku marked this pull request as ready for review January 27, 2025 14:44
@Qianruipku Qianruipku added Bugs Bugs that only solvable with sufficient knowledge of DFT GPU & DCU & HPC GPU and DCU and HPC related any issues Features Needed The features are indeed needed, and developers should have sophisticated knowledge labels Jan 28, 2025
@Qianruipku Qianruipku changed the title Try make BPCG support band parallelism Feature: Make BPCG support band parallelism Jan 28, 2025
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BPCG can support band parallelism
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