Worked on the cp2k/cp2k repository to enhance stability and correctness in the DBCSR computational path, focusing on memory layout and distribution logic. Addressed a critical bug by reverting a previous change that had inadvertently enforced contiguity on row and column block size arrays within the dbcsr_create routine. This rollback restored non-contiguous handling across modules, mitigating potential memory and performance regressions. The work involved targeted code reversion and careful debugging in Fortran, ensuring that future development would maintain correct data distribution. Emphasized maintainability and clarity in the codebase, leveraging expertise in code rollback and low-level memory management.