Overview of Steele

Overview of Steele Overview of Steele

Overview of Steele

At the time of retirement, Steele nodes ran Red Hat Enterprise Linux 5 (RHEL5) and used Moab Workload Manager 7 and TORQUE Resource Manager 4 as the portable batch system (PBS) for resource and job management. Steele also ran jobs for BoilerGrid whenever processor cores in it would otherwise be idle.

Frequenty Asked Questions

Some common questions, errors, and problems are categorized below. Click the Expand Topics link in the upper right to see all entries at once. You can also use the search box above to search the user guide for any issues you are seeing.

Frequenty Asked Questions About Steele

About Steele

Frequenty Asked Questions About Steele Can you remove me from the Steele mailing list?

Question

Can you remove me from the Steele users mailing list?

Answer

Your subscription in the Steele mailing list is tied to your account on Steele. If you are no longer using your account on Steele, your account can be deleted from the My Accounts page. Hover over the resource you wish to remove yourself from and click the red 'X' button. Your account and mailinglist subscription will be removed overnight. Be sure to make a copy of any data you wish to keep first.

Frequenty Asked Questions Logging In & Accounts

Logging In & Accounts

Frequenty Asked Questions Logging In & Accounts Errors

Errors

Frequenty Asked Questions Logging In & Accounts Errors /usr/bin/xauth: error in locking authority file

Problem

I receive this message when logging in:

/usr/bin/xauth: error in locking authority file

Solution

Your home directory disk quota is full. You may check your quota with myquota.

You will need to free up space in your home directory.

Frequenty Asked Questions Logging In & Accounts Errors My SSH connection hangs

Problem

Your console hangs while trying to connect to a RCAC Server.

Solution

This can happen due to various reasons. Most common reasons for hanging SSH terminals are:

• Network: If you are connected over wifi, make sure that your Internet connection is fine.
• Busy front-end server: When you connect to a cluster, you SSH to one of the front-ends. Due to transient user loads, one or more of the front-ends may become unresponsive for a short while. To avoid this, try reconnecting to the cluster or wait until the server you have connected to has reduced load.
• File system issue: If a server has issues with one or more of the file systems (home, scratch, or depot) it may freeze your terminal. To avoid this you can connect to another front-end.

If neither of the suggestions above work, please contact rcac-help@purdue.edu specifying the name of the server where your console is hung.

Frequenty Asked Questions Logging In & Accounts Questions

Questions

Frequenty Asked Questions Logging In & Accounts Questions I worked on Steele after I graduated/left Purdue, but can not access it anymore

Problem

You have graduated or left Purdue but continue collaboration with your Purdue colleagues. You find that your access to Purdue resources has suddenly stopped and your password is no longer accepted.

Solution

Access to all Research Computing resources depends on having a valid Purdue Career Account. Expired Career Accounts are removed twice a year, during Spring and October breaks (more details at the official page). If your Career Account was purged due to expiration, you will not be be able to access the resources.

To provide remote collaborators with valid Purdue credentials, the University provides a special procedure called R4P ("request for privileges"). If you need to continue your collaboration with your Purdue PI, the PI will have to work with their departmental Business Office to submit or renew an R4P request on your behalf.

After your R4P is completed and Career Account is restored, please note two additional necessary steps:

• Access: Restored Career Accounts by default do not have any Research Computing resources enabled for them. Your PI will have to login to the Manage Users tool and explicitly re-enable your access by un-checking and then ticking back checkboxes for desired queues/Unix groups resources.

• Email: Restored Career Accounts by default do not have their @purdue.edu email service enabled. While this does not preclude you from using Research Computing resources, any email messages (be that generated on the clusters, or any service announcements) would not be delivered - which may cause inconvenience or loss of compute jobs. To avoid this, we recommend setting your restored @purdue.edu email service to "Forward" (to an actual address you read). The easiest way to ensure it is to go through the Account Setup process.

Frequenty Asked Questions Jobs

Jobs

Frequenty Asked Questions Jobs Errors

Errors

Frequenty Asked Questions Jobs Errors cannot connect to X server / cannot open display

Problem

You receive the following message after entering a command to bring up a graphical window

cannot connect to X server cannot open display

Solution

This can happen due to multiple reasons:

• Reason 1: Your SSH client software does not support graphical display by itself (e.g. SecureCRT or PuTTY).
  • Solution: Try using a client software like Thinlinc or MobaXTerm as described here.

• Reason 2: You did not enable X11 forwarding in your SSH connection.

  • Solution: If you are in a Windows environment, make sure that X11 forwarding is enabled in your connection settings (e.g. in MobaXTerm or PuTTY). If you are in a Linux environment, try

    ssh -Y -l username hostname

• Reason 3: If you are trying to open a graphical window within an interactive PBS job, make sure you are using the -X option with qsub after following the previous step(s) for connecting to the front-end. Please see the example here.
• Reason 4: If none of the above apply, make sure that you are within quota of your home directory as described here.

Frequenty Asked Questions Jobs Errors bash: command not found

Problem

You receive the following message after typing a command

bash: command not found

Solution

This means the system doesn't know how to find your command. Typically, you need to load a module to do it.

Frequenty Asked Questions Jobs Errors qdel: Server could not connect to MOM 12345.rice-adm.rcac.purdue.edu

Problem

You receive the following message after attempting to delete a job with the 'qdel' command

qdel: Server could not connect to MOM 12345.rice-adm.rcac.purdue.edu

Solution

This error usually indicates that at least one node running your job has stopped responding or crashed. Please forward the job ID to rcac-help@purdue.edu, and ITaP Research Computing staff can help remove the job from the queue.

Frequenty Asked Questions Jobs Errors bash: module command not found

Problem

You receive the following message after typing a command, e.g. module load intel

bash: module command not found

Solution

The system cannot find the module command. You need to source the modules.sh file as below

source /etc/profile.d/modules.sh

or

#!/bin/bash -i

Frequenty Asked Questions Jobs Questions

Questions

Frequenty Asked Questions Jobs Questions How do I check my job output while it is running?

Problem

After submitting your job to the cluster, you want to see the output that it generates.

Solution

There are two simple ways to do this:

• qpeek: Use the tool qpeek to check the job's output. Syntax of the command is:

  qpeek <jobid>

• Redirect your output to a file: To do this you need to edit the main command in your jobscript as shown below. Please note the redirection command starting with the greater than (>) sign.

  myapplication ...other arguments... > "${PBS_JOBID}.output"

  On any front-end, go to the working directory of the job and scan the output file.

  tail "<jobid>.output"

  Make sure to replace <jobid> with an appropriate jobid.

Frequenty Asked Questions Jobs Questions How can I get email alerts about my PBS job status?

Question

How can I be notified when my PBS job was executed and if it completed successfully?

Answer

Submit your job with the following command line arguments

qsub -M email_address -m bea myjobsubmissionfile

Or, include the following in your job submission file.

#PBS -M email_address                                                  
#PBS -m bae                                                                         

The -m option can have the following letters; "a", "b", and "e":

a - mail is sent when the job is aborted by the batch system.
b - mail is sent when the job begins execution.
e - mail is sent when the job terminates.

Frequenty Asked Questions Jobs Questions How do I know Non-uniform Memory Access (NUMA) layout on Steele?

How do I know Non-uniform Memory Access (NUMA) layout on Steele?

• You can learn about processor layout on Steele nodes using the following command:

  ${resource.hostname}-a000:~$ lstopo-no-graphics

• For detailed IO connectivity:

  ${resource.hostname}-a000:~$ lstopo-no-graphics --physical --whole-io

• Please note that NUMA information is useful for advanced MPI/OpenMP/GPU optimizations. For most users, using default NUMA settings in MPI or OpenMP would give you the best performance.

Frequenty Asked Questions Data

Data

Frequenty Asked Questions Data Can I share data with outside collaborators?

Can I share data with outside collaborators?

Yes! Globus allows convenient sharing of data with outside collaborators. Data can be shared with collaborators' personal computers or directly with many other computing resources at other intstitutions. See the Globus documentation on how to share data:

• https://docs.globus.org/how-to/share-files/

Frequenty Asked Questions Software

Software

Frequenty Asked Questions Software How can I get access to Sentaurus software?

Question

How can I get access to Sentaurus tools for micro- and nano-electronics design?

Answer

Sentaurus software license requires a signed NDA. Please contact Dr. Mark Johnson, Director of ECE Instructional Laboratories to complete the process.

Once the licensing process is complete and you have been added into a cae2 Unix group, you could use Sentaurus on RCAC community clusters by loading the corresponding environment module:

module load sentaurus

Frequenty Asked Questions About Research Computing

About Research Computing

Frequenty Asked Questions About Research Computing Can I get a private server from RCAC?

Question

Can I get a private (virtual or physical) server from RCAC?

Answer

Often, researchers may want a private server to run databases, web servers, or other software. RCAC currently does not offer private servers (formerly known as "Firebox").

For use cases like this, we recommend the Jetstream Cloud (http://jetstream-cloud.org/) an NSF-funded science cloud allocated through the XSEDE project. RCAC staff can help get you access to Jetstream to test, or to help write an allocation proposal for larger projects.

Alternatively, you may consider commercial cloud providers such as Amazon Web Services, Azure, or Digital Ocean. These services are very flexible, but do come with a monetary cost.

Frequenty Asked Questions

Some common questions, errors, and problems are categorized below. Click the Expand Topics link in the upper right to see all entries at once. You can also use the search box above to search the user guide for any issues you are seeing.

Frequenty Asked Questions About Steele

About Steele

Frequenty Asked Questions About Steele Can you remove me from the Steele mailing list?

Question

Can you remove me from the Steele users mailing list?

Answer

Your subscription in the Steele mailing list is tied to your account on Steele. If you are no longer using your account on Steele, your account can be deleted from the My Accounts page. Hover over the resource you wish to remove yourself from and click the red 'X' button. Your account and mailinglist subscription will be removed overnight. Be sure to make a copy of any data you wish to keep first.

Frequenty Asked Questions Logging In & Accounts

Logging In & Accounts

Frequenty Asked Questions Logging In & Accounts Errors

Errors

Frequenty Asked Questions Logging In & Accounts Errors /usr/bin/xauth: error in locking authority file

Problem

I receive this message when logging in:

/usr/bin/xauth: error in locking authority file

Solution

Your home directory disk quota is full. You may check your quota with myquota.

You will need to free up space in your home directory.

Frequenty Asked Questions Logging In & Accounts Errors My SSH connection hangs

Problem

Your console hangs while trying to connect to a RCAC Server.

Solution

This can happen due to various reasons. Most common reasons for hanging SSH terminals are:

• Network: If you are connected over wifi, make sure that your Internet connection is fine.
• Busy front-end server: When you connect to a cluster, you SSH to one of the front-ends. Due to transient user loads, one or more of the front-ends may become unresponsive for a short while. To avoid this, try reconnecting to the cluster or wait until the server you have connected to has reduced load.
• File system issue: If a server has issues with one or more of the file systems (home, scratch, or depot) it may freeze your terminal. To avoid this you can connect to another front-end.

If neither of the suggestions above work, please contact rcac-help@purdue.edu specifying the name of the server where your console is hung.

Frequenty Asked Questions Logging In & Accounts Questions

Questions

Frequenty Asked Questions Logging In & Accounts Questions I worked on Steele after I graduated/left Purdue, but can not access it anymore

Problem

You have graduated or left Purdue but continue collaboration with your Purdue colleagues. You find that your access to Purdue resources has suddenly stopped and your password is no longer accepted.

Solution

Access to all Research Computing resources depends on having a valid Purdue Career Account. Expired Career Accounts are removed twice a year, during Spring and October breaks (more details at the official page). If your Career Account was purged due to expiration, you will not be be able to access the resources.

To provide remote collaborators with valid Purdue credentials, the University provides a special procedure called R4P ("request for privileges"). If you need to continue your collaboration with your Purdue PI, the PI will have to work with their departmental Business Office to submit or renew an R4P request on your behalf.

After your R4P is completed and Career Account is restored, please note two additional necessary steps:

• Access: Restored Career Accounts by default do not have any Research Computing resources enabled for them. Your PI will have to login to the Manage Users tool and explicitly re-enable your access by un-checking and then ticking back checkboxes for desired queues/Unix groups resources.

• Email: Restored Career Accounts by default do not have their @purdue.edu email service enabled. While this does not preclude you from using Research Computing resources, any email messages (be that generated on the clusters, or any service announcements) would not be delivered - which may cause inconvenience or loss of compute jobs. To avoid this, we recommend setting your restored @purdue.edu email service to "Forward" (to an actual address you read). The easiest way to ensure it is to go through the Account Setup process.

Frequenty Asked Questions Jobs

Jobs

Frequenty Asked Questions Jobs Errors

Errors

Frequenty Asked Questions Jobs Errors cannot connect to X server / cannot open display

Problem

You receive the following message after entering a command to bring up a graphical window

cannot connect to X server cannot open display

Solution

This can happen due to multiple reasons:

• Reason 1: Your SSH client software does not support graphical display by itself (e.g. SecureCRT or PuTTY).
  • Solution: Try using a client software like Thinlinc or MobaXTerm as described here.

• Reason 2: You did not enable X11 forwarding in your SSH connection.

  • Solution: If you are in a Windows environment, make sure that X11 forwarding is enabled in your connection settings (e.g. in MobaXTerm or PuTTY). If you are in a Linux environment, try

    ssh -Y -l username hostname

• Reason 3: If you are trying to open a graphical window within an interactive PBS job, make sure you are using the -X option with qsub after following the previous step(s) for connecting to the front-end. Please see the example here.
• Reason 4: If none of the above apply, make sure that you are within quota of your home directory as described here.

Frequenty Asked Questions Jobs Errors bash: command not found

Problem

You receive the following message after typing a command

bash: command not found

Solution

This means the system doesn't know how to find your command. Typically, you need to load a module to do it.

Frequenty Asked Questions Jobs Errors qdel: Server could not connect to MOM 12345.rice-adm.rcac.purdue.edu

Problem

You receive the following message after attempting to delete a job with the 'qdel' command

qdel: Server could not connect to MOM 12345.rice-adm.rcac.purdue.edu

Solution

This error usually indicates that at least one node running your job has stopped responding or crashed. Please forward the job ID to rcac-help@purdue.edu, and ITaP Research Computing staff can help remove the job from the queue.

Frequenty Asked Questions Jobs Errors bash: module command not found

Problem

You receive the following message after typing a command, e.g. module load intel

bash: module command not found

Solution

The system cannot find the module command. You need to source the modules.sh file as below

source /etc/profile.d/modules.sh

or

#!/bin/bash -i

Frequenty Asked Questions Jobs Questions

Questions

Frequenty Asked Questions Jobs Questions How do I check my job output while it is running?

Problem

After submitting your job to the cluster, you want to see the output that it generates.

Solution

There are two simple ways to do this:

• qpeek: Use the tool qpeek to check the job's output. Syntax of the command is:

  qpeek <jobid>

• Redirect your output to a file: To do this you need to edit the main command in your jobscript as shown below. Please note the redirection command starting with the greater than (>) sign.

  myapplication ...other arguments... > "${PBS_JOBID}.output"

  On any front-end, go to the working directory of the job and scan the output file.

  tail "<jobid>.output"

  Make sure to replace <jobid> with an appropriate jobid.

Frequenty Asked Questions Jobs Questions How can I get email alerts about my PBS job status?

Question

How can I be notified when my PBS job was executed and if it completed successfully?

Answer

Submit your job with the following command line arguments

qsub -M email_address -m bea myjobsubmissionfile

Or, include the following in your job submission file.

#PBS -M email_address                                                  
#PBS -m bae                                                                         

The -m option can have the following letters; "a", "b", and "e":

a - mail is sent when the job is aborted by the batch system.
b - mail is sent when the job begins execution.
e - mail is sent when the job terminates.

Frequenty Asked Questions Jobs Questions How do I know Non-uniform Memory Access (NUMA) layout on Steele?

How do I know Non-uniform Memory Access (NUMA) layout on Steele?

• You can learn about processor layout on Steele nodes using the following command:

  ${resource.hostname}-a000:~$ lstopo-no-graphics

• For detailed IO connectivity:

  ${resource.hostname}-a000:~$ lstopo-no-graphics --physical --whole-io

• Please note that NUMA information is useful for advanced MPI/OpenMP/GPU optimizations. For most users, using default NUMA settings in MPI or OpenMP would give you the best performance.

Frequenty Asked Questions Data

Data

Frequenty Asked Questions Data Can I share data with outside collaborators?

Can I share data with outside collaborators?

Yes! Globus allows convenient sharing of data with outside collaborators. Data can be shared with collaborators' personal computers or directly with many other computing resources at other intstitutions. See the Globus documentation on how to share data:

• https://docs.globus.org/how-to/share-files/

Frequenty Asked Questions Software

Software

Frequenty Asked Questions Software How can I get access to Sentaurus software?

Question

How can I get access to Sentaurus tools for micro- and nano-electronics design?

Answer

Sentaurus software license requires a signed NDA. Please contact Dr. Mark Johnson, Director of ECE Instructional Laboratories to complete the process.

Once the licensing process is complete and you have been added into a cae2 Unix group, you could use Sentaurus on RCAC community clusters by loading the corresponding environment module:

module load sentaurus

Frequenty Asked Questions About Research Computing

About Research Computing

Frequenty Asked Questions About Research Computing Can I get a private server from RCAC?

Question

Can I get a private (virtual or physical) server from RCAC?

Answer

Often, researchers may want a private server to run databases, web servers, or other software. RCAC currently does not offer private servers (formerly known as "Firebox").

For use cases like this, we recommend the Jetstream Cloud (http://jetstream-cloud.org/) an NSF-funded science cloud allocated through the XSEDE project. RCAC staff can help get you access to Jetstream to test, or to help write an allocation proposal for larger projects.

Alternatively, you may consider commercial cloud providers such as Amazon Web Services, Azure, or Digital Ocean. These services are very flexible, but do come with a monetary cost.

Frequenty Asked Questions

Some common questions, errors, and problems are categorized below. Click the Expand Topics link in the upper right to see all entries at once. You can also use the search box above to search the user guide for any issues you are seeing.

Frequenty Asked Questions About Steele

About Steele

Frequenty Asked Questions About Steele Can you remove me from the Steele mailing list?

Question

Can you remove me from the Steele users mailing list?

Answer

Your subscription in the Steele mailing list is tied to your account on Steele. If you are no longer using your account on Steele, your account can be deleted from the My Accounts page. Hover over the resource you wish to remove yourself from and click the red 'X' button. Your account and mailinglist subscription will be removed overnight. Be sure to make a copy of any data you wish to keep first.

Frequenty Asked Questions Logging In & Accounts

Logging In & Accounts

Frequenty Asked Questions Logging In & Accounts Errors

Errors

Frequenty Asked Questions Logging In & Accounts Errors /usr/bin/xauth: error in locking authority file

Problem

I receive this message when logging in:

/usr/bin/xauth: error in locking authority file

Solution

Your home directory disk quota is full. You may check your quota with myquota.

You will need to free up space in your home directory.

Frequenty Asked Questions Logging In & Accounts Errors My SSH connection hangs

Problem

Your console hangs while trying to connect to a RCAC Server.

Solution

This can happen due to various reasons. Most common reasons for hanging SSH terminals are:

• Network: If you are connected over wifi, make sure that your Internet connection is fine.
• Busy front-end server: When you connect to a cluster, you SSH to one of the front-ends. Due to transient user loads, one or more of the front-ends may become unresponsive for a short while. To avoid this, try reconnecting to the cluster or wait until the server you have connected to has reduced load.
• File system issue: If a server has issues with one or more of the file systems (home, scratch, or depot) it may freeze your terminal. To avoid this you can connect to another front-end.

If neither of the suggestions above work, please contact rcac-help@purdue.edu specifying the name of the server where your console is hung.

Frequenty Asked Questions Logging In & Accounts Questions

Questions

Frequenty Asked Questions Logging In & Accounts Questions I worked on Steele after I graduated/left Purdue, but can not access it anymore

Problem

You have graduated or left Purdue but continue collaboration with your Purdue colleagues. You find that your access to Purdue resources has suddenly stopped and your password is no longer accepted.

Solution

Access to all Research Computing resources depends on having a valid Purdue Career Account. Expired Career Accounts are removed twice a year, during Spring and October breaks (more details at the official page). If your Career Account was purged due to expiration, you will not be be able to access the resources.

To provide remote collaborators with valid Purdue credentials, the University provides a special procedure called R4P ("request for privileges"). If you need to continue your collaboration with your Purdue PI, the PI will have to work with their departmental Business Office to submit or renew an R4P request on your behalf.

After your R4P is completed and Career Account is restored, please note two additional necessary steps:

• Access: Restored Career Accounts by default do not have any Research Computing resources enabled for them. Your PI will have to login to the Manage Users tool and explicitly re-enable your access by un-checking and then ticking back checkboxes for desired queues/Unix groups resources.

• Email: Restored Career Accounts by default do not have their @purdue.edu email service enabled. While this does not preclude you from using Research Computing resources, any email messages (be that generated on the clusters, or any service announcements) would not be delivered - which may cause inconvenience or loss of compute jobs. To avoid this, we recommend setting your restored @purdue.edu email service to "Forward" (to an actual address you read). The easiest way to ensure it is to go through the Account Setup process.

Frequenty Asked Questions Jobs

Jobs

Frequenty Asked Questions Jobs Errors

Errors

Frequenty Asked Questions Jobs Errors cannot connect to X server / cannot open display

Problem

You receive the following message after entering a command to bring up a graphical window

cannot connect to X server cannot open display

Solution

This can happen due to multiple reasons:

• Reason 1: Your SSH client software does not support graphical display by itself (e.g. SecureCRT or PuTTY).
  • Solution: Try using a client software like Thinlinc or MobaXTerm as described here.

• Reason 2: You did not enable X11 forwarding in your SSH connection.

  • Solution: If you are in a Windows environment, make sure that X11 forwarding is enabled in your connection settings (e.g. in MobaXTerm or PuTTY). If you are in a Linux environment, try

    ssh -Y -l username hostname

• Reason 3: If you are trying to open a graphical window within an interactive PBS job, make sure you are using the -X option with qsub after following the previous step(s) for connecting to the front-end. Please see the example here.
• Reason 4: If none of the above apply, make sure that you are within quota of your home directory as described here.

Frequenty Asked Questions Jobs Errors bash: command not found

Problem

You receive the following message after typing a command

bash: command not found

Solution

This means the system doesn't know how to find your command. Typically, you need to load a module to do it.

Frequenty Asked Questions Jobs Errors qdel: Server could not connect to MOM 12345.rice-adm.rcac.purdue.edu

Problem

You receive the following message after attempting to delete a job with the 'qdel' command

qdel: Server could not connect to MOM 12345.rice-adm.rcac.purdue.edu

Solution

This error usually indicates that at least one node running your job has stopped responding or crashed. Please forward the job ID to rcac-help@purdue.edu, and ITaP Research Computing staff can help remove the job from the queue.

Frequenty Asked Questions Jobs Errors bash: module command not found

Problem

You receive the following message after typing a command, e.g. module load intel

bash: module command not found

Solution

The system cannot find the module command. You need to source the modules.sh file as below

source /etc/profile.d/modules.sh

or

#!/bin/bash -i

Frequenty Asked Questions Jobs Questions

Questions

Frequenty Asked Questions Jobs Questions How do I check my job output while it is running?

Problem

After submitting your job to the cluster, you want to see the output that it generates.

Solution

There are two simple ways to do this:

• qpeek: Use the tool qpeek to check the job's output. Syntax of the command is:

  qpeek <jobid>

• Redirect your output to a file: To do this you need to edit the main command in your jobscript as shown below. Please note the redirection command starting with the greater than (>) sign.

  myapplication ...other arguments... > "${PBS_JOBID}.output"

  On any front-end, go to the working directory of the job and scan the output file.

  tail "<jobid>.output"

  Make sure to replace <jobid> with an appropriate jobid.

Frequenty Asked Questions Jobs Questions How can I get email alerts about my PBS job status?

Question

How can I be notified when my PBS job was executed and if it completed successfully?

Answer

Submit your job with the following command line arguments

qsub -M email_address -m bea myjobsubmissionfile

Or, include the following in your job submission file.

#PBS -M email_address                                                  
#PBS -m bae                                                                         

The -m option can have the following letters; "a", "b", and "e":

a - mail is sent when the job is aborted by the batch system.
b - mail is sent when the job begins execution.
e - mail is sent when the job terminates.

Frequenty Asked Questions Jobs Questions How do I know Non-uniform Memory Access (NUMA) layout on Steele?

How do I know Non-uniform Memory Access (NUMA) layout on Steele?

• You can learn about processor layout on Steele nodes using the following command:

  ${resource.hostname}-a000:~$ lstopo-no-graphics

• For detailed IO connectivity:

  ${resource.hostname}-a000:~$ lstopo-no-graphics --physical --whole-io

• Please note that NUMA information is useful for advanced MPI/OpenMP/GPU optimizations. For most users, using default NUMA settings in MPI or OpenMP would give you the best performance.

Frequenty Asked Questions Data

Data

Frequenty Asked Questions Data Can I share data with outside collaborators?

Can I share data with outside collaborators?

Yes! Globus allows convenient sharing of data with outside collaborators. Data can be shared with collaborators' personal computers or directly with many other computing resources at other intstitutions. See the Globus documentation on how to share data:

• https://docs.globus.org/how-to/share-files/

Frequenty Asked Questions Software

Software

Frequenty Asked Questions Software How can I get access to Sentaurus software?

Question

How can I get access to Sentaurus tools for micro- and nano-electronics design?

Answer

Sentaurus software license requires a signed NDA. Please contact Dr. Mark Johnson, Director of ECE Instructional Laboratories to complete the process.

Once the licensing process is complete and you have been added into a cae2 Unix group, you could use Sentaurus on RCAC community clusters by loading the corresponding environment module:

module load sentaurus

Frequenty Asked Questions About Research Computing

About Research Computing

Frequenty Asked Questions About Research Computing Can I get a private server from RCAC?

Question

Can I get a private (virtual or physical) server from RCAC?

Answer

Often, researchers may want a private server to run databases, web servers, or other software. RCAC currently does not offer private servers (formerly known as "Firebox").

For use cases like this, we recommend the Jetstream Cloud (http://jetstream-cloud.org/) an NSF-funded science cloud allocated through the XSEDE project. RCAC staff can help get you access to Jetstream to test, or to help write an allocation proposal for larger projects.

Alternatively, you may consider commercial cloud providers such as Amazon Web Services, Azure, or Digital Ocean. These services are very flexible, but do come with a monetary cost.

Biography of John M. Steele

Biography of John M. Steele Overview of John M. Steele

John Campbell, Purdue associate vice president for information technology and head of ITaP Research Computing, stands with John Steele (L) at the dedication of the new Steele cluster in May 2008.

John M. Steele

John M. Steele, associate professor emeritus of computer sciences, was involved with research computing at Purdue almost from its inception. He joined the Purdue staff in 1963 at the Computer Sciences Center associated with the then-new Computer Science Department. He served as the director of the Purdue University Computing Center, the high performance computing unit at Purdue prior to ITaP, from 1988 to 2001 before retiring in 2003.

John Steele signs the end panel of the Steele cluster.

His research interests have been in the areas of computer data communications and computer circuits and systems, including research on an early mobile wireless Internet system. He still does computing consulting. Steele earned his bachelor's in math and physics and master's in electrical engineering at Purdue.