Matthew, thats hard to asses without knowing more about your model. If you have an number of risks that are in the 0-5% probability range, then certainly, it might make a small difference.
Thanks - I can't even re-create this warning so cannot understand why it occurs. Does the warning come up if you turn off the option to calculate risk percentiles?
Member for
20 years 6 months
Member for20 years6 months
Submitted by Santosh Bhat on Mon, 2022-01-31 11:24
I can't find anythign in my archives, and I no longer have access to Oracle Support for Primavera Risk Analysis. When do you get this message - what is the action you're performing? Are you getting P5 and P95 values displayed in the columns that match the results you see in the Distribution Graph?
Thanks a lot for your advice. I have tried to run the analysis twice, and i got the same warning message. And my setting on risk percentiles is shown below, I believe I didn't set something strange there......
Thanks a lot for your advice. I have tried to run the analysis twice, and i got the same warning message. And my setting on risk percentiles is shown below, I believe I didn't set something strange there......
[[wysiwyg_imageupload:8047:]]
Member for
20 years 6 months
Member for20 years6 months
Submitted by Santosh Bhat on Mon, 2022-01-31 04:41
Matthew, I'll have to check my archive If I have any details about this specific warning, but from memory - When you run the analysis in Pertmaster/PRA, you need to specify in the options that you want certain percentile dates calculated and stored (eg. P50 Start Date, P50 Finish Date). If you've then changed any of the inputs of the risk model, this renders those calculated dates as invalid - they may not represent the Start/Finish dates of the revised model, and you need to run the analysis again, with the option to calculate the risk percentiles on again.
For what its worth - the more modern risk analysis tools, automatically calculate these dates and do it significantly faster than Pertmaster/PRA does.
Member for
20 years 6 monthsMatthew, thats hard to asses
Matthew, thats hard to asses without knowing more about your model. If you have an number of risks that are in the 0-5% probability range, then certainly, it might make a small difference.
Member for
8 years 7 monthssurely there was some
surely there was some differences between the case of 500 iterations and 5000 iterations, especially towards P95/P100.
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20 years 6 monthsMatthew,Interesting! Do you
Matthew,
Interesting! Do you notice any difference in the results? I shouldn't expect any.
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8 years 7 monthsi just found that the only
i just found that the only way to get rid of the warning is to run under 1000 iterations...
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20 years 6 monthsMatthew,Thanks - I can't even
Matthew,
Thanks - I can't even re-create this warning so cannot understand why it occurs. Does the warning come up if you turn off the option to calculate risk percentiles?
Member for
20 years 6 monthsMatthew,I can't find anythign
Matthew,
I can't find anythign in my archives, and I no longer have access to Oracle Support for Primavera Risk Analysis. When do you get this message - what is the action you're performing? Are you getting P5 and P95 values displayed in the columns that match the results you see in the Distribution Graph?
Member for
8 years 7 monthsthe warning message pop up
the warning message pop up after the analysis finish running all the iterations.
Member for
8 years 7 monthsThanks a lot for your advice.
Thanks a lot for your advice. I have tried to run the analysis twice, and i got the same warning message. And my setting on risk percentiles is shown below, I believe I didn't set something strange there......
Member for
8 years 7 monthsThanks a lot for your advice.
Thanks a lot for your advice. I have tried to run the analysis twice, and i got the same warning message. And my setting on risk percentiles is shown below, I believe I didn't set something strange there......
[[wysiwyg_imageupload:8047:]]
Member for
20 years 6 monthsMatthew, I'll have to check
Matthew, I'll have to check my archive If I have any details about this specific warning, but from memory - When you run the analysis in Pertmaster/PRA, you need to specify in the options that you want certain percentile dates calculated and stored (eg. P50 Start Date, P50 Finish Date). If you've then changed any of the inputs of the risk model, this renders those calculated dates as invalid - they may not represent the Start/Finish dates of the revised model, and you need to run the analysis again, with the option to calculate the risk percentiles on again.
For what its worth - the more modern risk analysis tools, automatically calculate these dates and do it significantly faster than Pertmaster/PRA does.