fix/AGIPD_CM_processing_issue_redmine_#75266

SUMMARY:

This MR is related to a det-support Redmine ticket https://in.xfel.eu/redmine/issues/75266?jump=issues. There were some reporter errors in the Data Processing Sections in the report for sequences 13, 20, and 52.

I understood that these errors occurred for images with fewer n_imgs than its preceding processed core (while applying cm_correction()) and the same value of trainIds was stored at the end of the shared_mem array.

Error's Screenshot:

Reviewers

@danilevc @kamile @kluyvert

cal_tools/cal_tools/agipdlib.py

@@ -371,17 +371,16 @@ class AgipdCorrections:
         dark_max = self.cm_dark_max
         fraction = self.cm_dark_fraction
         n_itr = self.cm_n_itr
-        
-        cell_id = self.shared_dict[i_proc]['cellId']
-        train_id = self.shared_dict[i_proc]['trainId']
         n_img = self.shared_dict[i_proc]['nImg'][0]
+        cell_id = self.shared_dict[i_proc]['cellId'][:n_img]
+        train_id = self.shared_dict[i_proc]['trainId'][:n_img]
         cell_ids = cell_id[train_id == train_id[0]]
         n_cells = cell_ids.size
         data = self.shared_dict[i_proc]['data'][:n_img].reshape(-1, n_cells,
                                                                 8, 64, 2, 64)
 
         # Loop over iterations
-        for i in range(n_itr):
+        for _ in range(n_itr):
             # Loop over rows of cells
             first = 0
             for cell_row in range(11):