Do TurboTax “Rounded” 1099-B input entries need to be manually “corrected” to be consistent with 1099-B reported to IRS?

In TurboTax my 1099-B input entries for individual stock sales are "rounded" (up or down) giving inconsistent totals when "totaled" for all  1099-B sales (Different from 1099-B totals reported to IRS).  Is this a concern?  Should (can?) I correct manually in forms?  Will IRS flag difference?