Table 2. Scalability of Tomosaic data processing with data set size and number of nodes.

Sample	Charcoal	Mouse brain
Pixels per tile	1920 × 1200	2448 × 2048
Number of rotations N θ	4500	4500
Pixel size (µm)	0.6	0.8
Mosaic tile grid size	4 × 4	12 × 11
Full recorded data volume (TB)	0.30	5.8
Threads for registration	20	100
Time for registration (s)	25	30
Threads for merging	20	250
Time for merging (h)	2.9	10
Threads for center calibration	4	11
Time for center calibration (h)	0.1	0.25
Threads for reconstruction	20	100
Reconstructed volume voxels	6600 × 6600 × 4204	22556 × 22556 × 18406
Reconstructed data volume (TB)	0.73 (32 bit)	37.4 (32 bit)
Time for reconstruction (h)	8.3	50