Torben's profile - activity

Just want confirm and note that if the user wishes to repeat/redo analysis using the same cluster name, the user has to type rake clean before running bundle exec rake run. Thanks for your help.

Thanks for your replies :-)

I guess, my problem must be linked to the AMI IDs because of the error message: 302 Unable to download AMI IDs C:/.../Rakefile:78:in new C:/.../Rakefile:78:in create_cluster C:/.../Rakefile:304:in block in <top (required)>

Anyway,can you elaborate on 3 and 4, please? Must the server version match the version of OpenStudio used to create the seed osm model? E.g. .../seeds/seed.osm. Or should the server version match the OpenStudio version installed on PC? Had hoped the project examples (xlsx) would work without changing them?

@MatthewSteen @BrianLBall, can my troubles be cause by one of the following things:

1. The aws_config.yml is not placed in the <home-dir>. I use C:\Users\<my_username>\aws_config.yml?
2. Do I need to make some OpenStudio specific setup of AWS or the AMI user?
3. Do I need to change the "OpenStudio Server Version" in Excel? (Defaults are in 1.110-rc3 in 0.4.2, and 1.14.4 in developer)
4. Does it depend on the versions of OpenStudio and EnergyPlus installed on my PC? (1.11.0 and 8.5.0)
5. Other ideas?

@MatthewSteen @BrianLBall, I found out that I had downloaded the developer-edition from Github.

• Tried vs. 0.4.2 instead. Got error "302 Unable to download AMI IDs". Tried both a AMI account and root account.
• Then tried to use vs. 0.4.1 since AMIs were set as default in 0.4.2 according to Github. Got same error 302.
• Then tried vs. developer again. First, I "OpenStudio did not load.. Will continue" and "It appears cluster default already running". Ran "rake clean". Now two instances were started in AWS, but my terminal again stopped at "ssh -i C:/.../ec2_server_key.pem. No data in AWS

Hi Matthew.

Thanks for your quick reply! I have now tried to follow the instructions on Github. To test it, I typed bundle exec rake run and selected the example "SEB_LHS_2013.xlsx" without changing the Excel spreadsheet. The server instances are initiated but nothing seems to happen when monitoring the instances from AWS EC2 console. And the terminal seemed to stop at ssh -i C:/OpenStudio-analysis-spreadsheet-develop/ec2_server_key.pem ubuntu@ec2-52-242-39-57.comput-1.amazonaws.com. Am I supposed to change something in the spreadsheet, e.g. Cluster Name or OS server version?

I wish to perform large scale analysis using OpenStudio but I have difficulties to follow the installation process described here: http://nrel.github.io/OpenStudio-user-documentation/tutorials/large_scale_analysis/

I have a number of questions:

1. "Starting OpenStudio's Cloud": Do I need to install Ruby and Git before running this code from my OS' command prompt? (i.e. gem install bundler, git clone ..., etc.)
2. "Export spreadsheet": Tried to "Export Analysis Spreadsheet" from PAT but got a "Export failed" error. (I'm using a simple test building with one room which runs smoothly in PAT)
3. "Running OpenStudio's cloud": must this command be run from a specific path? (rake run)

It seems that "Large Scale Analysis" is still a rough beta version. But I strongly believe that the community will benefit from these features so I hope the hard-working developers will continue down that path and make "large scale analyses" more accessible and user-friendly :-) Hope to hear from you..

NB: I am running OpenStudio 1.11.0 and have an account at Amazon EC2 web services.