bcast unnecessary

[shruthivis]

• Likely a cosmetic change, resulting in slight increase in efficiency. But some calls to bcast may be not required? E.g. line 928, 949, 955. Since a bcast is called at the beginning of while iteration in line 867 anyway?

• Also remove code that is commented out. e.g. macros lines 814-821

[shreyas-arvindekar]

It appears to be handled already. Please let me know if it needs some attention...