Fix comment describing new setting
@@ -72,11 +72,9 @@ class max_lanczos_iterations(_value_context):
class max_preconditioner_size(_value_context):
"""
- The maximum number of Lanczos iterations to perform
- This is used when 1) computing variance estiamtes 2) when drawing from MVNs, or
- 3) for kernel multiplication
- More values results in higher accuracy
- Default: 100
+ The maximum size of preconditioner to use. 0 corresponds to turning preconditioning off.
+ When enabled, usually a value of around ~10 works fairly well.
+ Default: 0
"""
_global_value = 0
