Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

BrianLBall's profile - activity

2019-03-15 11:11:17 -0500 commented question Restart an AWS PAT?

also, this measure is good to have in your workflow (or a modified version of it) to help reduce unwanted large files in

2019-03-15 11:08:27 -0500 commented question Restart an AWS PAT?

anytime, the 2.7.1-largescale1 AMI has been pretty stable for large simulations. I also use the c3 or d2 8xlarge instan

2019-03-15 10:30:02 -0500 commented question Restart an AWS PAT?

well, 10,240 datapoints at 50Mb is 512 Gb, so your instance probably ran out of disk space. You can verify that by usin

2019-03-15 10:24:29 -0500 commented question Restart an AWS PAT?

also try '2.7.1-largescale1'. This AMI has some load balancing changes to keep the server node from getting overloaded

2019-03-15 10:13:58 -0500 commented question Restart an AWS PAT?

whats your server instance type? How many datapoints are you running and how big is each datapoint file?

2019-03-12 17:58:16 -0500 answered a question PAT and Design of Experiments Algorithm

Try 2.7.1. 2.7.0 had an issue where an R dependency snuck thru the testing framework. This was corrected in PR

2019-02-04 12:06:38 -0500 commented question Trying to understand the flow of Ruby and Measures

here's a link to some measures if you want to use as examples, etc measures

2019-01-10 09:41:13 -0500 commented answer AWS free tier with PAT?

also, contrary to what was posted earlier, PAT has an active user base and is integral to several companies business mod

2019-01-09 11:24:46 -0500 answered a question AWS free tier with PAT?

Unfortunately the free tier on AWS no longer works with the latest versions of PAT. However, Amazon on longer charges b

2018-12-24 09:41:47 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

See Chris Balbachs answer

2018-12-19 15:35:26 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

OS 2.6 uses E+ 8.9, so that should be okay. Try running the measure by adding to the workflow in the measures tab

2018-12-19 15:27:08 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

have you also tried running it in the workflow with a model? I'm wondering if it doesnt work with 'apply measure now' b

2018-12-19 15:23:29 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

so that is bombing out here https://github.com/NREL/OpenStudio-EMS-Measures/blob/master/Measures/m_13_example_13_surface

2018-12-19 11:57:25 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

early on, it can be useful to just do the measure as a "one off", get it to work, and then see what needs to be paramete

2018-12-19 11:56:13 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

That sounds possible. One way would be to have the csv file name as an argument to the measure which would then go find

2018-12-19 10:01:44 -0500 commented answer Electrochromic Windows in OpenStudio with more than two states.

So those are OpenStudio Measures and some documentation on them can be found here http://nrel.github.io/OpenStudio-user-

2018-12-17 17:53:13 -0500 answered a question Electrochromic Windows in OpenStudio with more than two states.

if you are doing it in E+, then you can do it in OS. Check out https://github.com/NREL/OpenStudio-EMS-Measures for OS v

2018-11-12 10:58:04 -0500 answered a question Building OpenStudio Server for PAT.md

Creating your own instance of OS-Server is no trivial task (ie, one size does not fit all), but here are some scripts th

2018-11-07 10:04:54 -0500 commented answer Sampling of input parameters for Sensitivity Analysis

Here's a documentation example using R sensitivity with an external model example

2018-11-06 14:17:21 -0500 commented answer Sampling of input parameters for Sensitivity Analysis

I personally think PAT is more powerful since its built off of the functionality of OS Measures as well as leveraging al

2018-11-06 11:19:46 -0500 answered a question openstudio-server on windows server 2012 r2

it would be a lot of work to figure out how to run it without docker. Plus going forward you'd have to manage all the n

2018-11-05 17:20:12 -0500 answered a question Sampling of input parameters for Sensitivity Analysis

You tagged this as JEPlus, But OpenStudio PAT provides those analytic capabilities for you as well. The underlying R al

2018-10-29 11:55:00 -0500 commented question Initialize worker error

how many cores do you have on your computer?

2018-09-04 09:46:32 -0500 answered a question Calibration using GENOUD optimization algorithm in PAT

to answer your other question, Genoud and RGenoud in PAT are the same. It was just a name change in the GUI but the und

2018-08-21 09:47:36 -0500 commented answer PAT not calibrating Roof Insulation

you're going to want to look at the datapoint log. you can use the debug or verbose flag in the measure and it will pro

2018-08-08 11:54:52 -0500 commented answer PAT not calibrating Roof Insulation

This measure https://github.com/NREL/OpenStudio-Calibration-Measures/tree/master/measures/TimeseriesObjectiveFunction he

2018-08-01 11:57:45 -0500 commented question PAT not connecting with AWS

anything below 2.6.0 will be intermittent as far as startup goes, especially on smaller instances.

2018-07-31 16:01:12 -0500 answered a question PAT not calibrating Roof Insulation

The type of validation you are doing is resulting in an Under-determined problem, which has an infinite number of soluti

2018-07-31 11:20:26 -0500 commented question PAT not connecting with AWS

Can you try the 2.6.0 builds? A number of issues were addressed regarding docker deployment both locally and on AWS.

2018-07-31 11:19:20 -0500 commented question instances are not launching from PAT2

Which version of PAT are you using? Can you try the latest (2.6.0) and let us know if this is still happening?

2018-07-20 10:35:59 -0500 answered a question Which Sampling (algorithmic) Method to use with PAT 2

If you want all possible combinations then use the Design of Experiments (DOE) method with 'full_factorial'. You would n

2018-06-11 09:48:38 -0500 commented answer OpenStudio Control Thermostat

EMS sensor and actuator objects are in the 2.5.1 OS GUI. There is a new tab for this in the HVAC GUI.

2018-05-01 09:36:57 -0500 commented question EMS Output variable error

are you trying to use the EMS:Sensor? If so, then you need to have an output variable defined (or a Meter). Also, this

2018-05-01 09:36:40 -0500 commented question EMS Output variable error

are you trying to use the EMS:Sensor? If so, then you need to have an output variable defined (or a Meter). Also, this

2018-04-23 13:36:23 -0500 commented question Parametric Analyis Tool - Successful Simulation But No Change in Results

look thru the datapoint log file and find where that measure gets implemented. There should be some info statements as

2018-04-19 09:39:39 -0500 commented question EnergyPlus EMS: internal variable

what does your EMS Program look like?

2018-04-11 10:24:40 -0500 answered a question How to realize Model Predicitve Control with OpenStudio

OpenStudio no longer uses Dakota, so those methods in that paper are all deprecated. Instead, you can use the PAT tool

2018-04-03 16:45:12 -0500 commented question Error in running simulation in Parametric Analysis Tool with HVAC measures on

click on the json link by the datapoint and look for errors in the workflow. Otherwise, download the zip file and look

2017-12-14 10:44:56 -0500 commented question OpenStudio PAT v2.0 OSA Error

Are you turning any of your measure arguments to Variables? That is a requirement in order to use the algorithms.

2017-10-13 19:09:36 -0500 answered a question openstudio server simulations 0/0 failing to load when measure set to FALSE

The DOE algorithm needs more than 1 variable to work. From your screenshot looks like you only have 1. The 2.0 PAT GUI

2017-10-13 09:49:41 -0500 answered a question PAT 2.0 AWS capping at 50 runs

The R package used to generate the full factorial design is the DoE.Base package. It calls contr.poly to help generate

2017-09-06 15:37:06 -0500 edited answer HOW TO EMS with OpenStudio ?

here is some sample ruby code that you would use in a measure to create a sensor, an actuator and a program: Sensor Cr

2017-09-06 15:35:58 -0500 edited answer HOW TO EMS with OpenStudio ?

here is some sample ruby code that you would use in a measure to create a sensor, an actuator and a program: Sensor Cr

2017-09-06 10:28:34 -0500 answered a question HOW TO EMS with OpenStudio ?

here is some sample ruby code that you would use in a measure to create a sensor, an actuator and a program: Sensor Cr

2017-09-05 12:42:10 -0500 commented answer Results Visualization: Viewdata measure for EnergyPlus output ?

EMS has been wrapped in OS so you can do item 1 in an OpenStudio Measure.

2017-07-24 11:28:32 -0500 commented question openstudio server cannot load measure

I would double check that you are using the same OS version locally that you are using in the Server. Also do an update

2017-06-22 16:56:07 -0500 commented question How to overwrite the zone_supply_air_temp and zone_supply_air_humidity?

what calling point are you using for the EMS?

2017-06-21 10:17:19 -0500 commented answer Setting up OpenStudio-server on a local machine

yes, i run it at the root project checkout where the Dockerfile and docker-compose.yml files are

2017-06-21 10:02:25 -0500 commented answer Run models using sampling methods locally

those configurations are the default for the large scale applications. You are welcome to experiment with modifying the

2017-06-21 09:57:22 -0500 commented answer Run models using sampling methods locally

it would probably suffer from performance issues fighting over computer resources.