Difference between revisions of "Frontenac:MigrateOff"

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== '''Outline''' ==
 
== '''Outline''' ==
  
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Frontenac serves as our main compute cluster and is operated through the SLURM scheduler. Until March 31, allocations from the 2018 Resource Allocation Competition of Compute Canada, are running on this cluster. Furthermore, the cluster is accessed by researchers with a "contributed" priority allocation, and  on an "opportunistic" scheduling basis with low priority.
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Frontenac serves as CAC's main compute cluster. Until March 31, allocations from the 2018 Resource Allocation Competition of Compute Canada ("RAC 2018"), are running on this cluster. Furthermore, the cluster is accessed by researchers with a "contributed" priority allocation, and  on an "opportunistic" scheduling basis with low priority.
  
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Since the cluster will not be among the allocatable system for the 2019 Compute Canada allocation round ("RAC2019"), the operation of Frontenac will be on a cost-recovery basis from April 1, 2019 onward. For details about the fee structure, please see [[Frontenac:Fees|our Frontenac Fee Wiki page]] for details. This is an important change that affects both compute access and the usage of storage.
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Since the cluster will not be among the allocatable system for the 2019 Compute Canada allocation round ("RAC 2019"), the operation of Frontenac will be on a cost-recovery basis from April 1, 2019 onward. For details about the fee structure, please see [[Frontenac:Fees|our Frontenac Fee Wiki page]] for details. This is an important change that affects both compute access and the usage of storage.
  
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'''From April 2019 we will cannot provide compute services and/or storage capacity on Frontenac free of charge.'''
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'''From April 1, 2019 we will not provide compute services and/or storage capacity on Frontenac free of charge.'''
  
 
If you are currently using Frontenac for computations, and are looking for another system that offers cycles free of charge, please consult the available resources at Compute Canada. Allocations of larger resources require an application, but "opportunistic" use (Rapid Access Service or RAS) is available also.
 
If you are currently using Frontenac for computations, and are looking for another system that offers cycles free of charge, please consult the available resources at Compute Canada. Allocations of larger resources require an application, but "opportunistic" use (Rapid Access Service or RAS) is available also.
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Compute Ontario has kindly offered to provide temporary storage (located at the [Graham] Compute Cluster) for those of our current users who need to move their data and presently do not have sufficient allocation to accommodate them.
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Note that the CAC team will continue to provide support for researchers from Queen's and other Ontario Universities, irrespective of the systems they are working on. Our main  commitment is to the researchers, not the platform.
  
 
=== '''Important Deadlines''' ===
 
=== '''Important Deadlines''' ===
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| '''September 1, 2019'''  
 
| '''September 1, 2019'''  
 
|  
 
|  
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* '''All data''' associated with free accounts are '''purged'''
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* '''Data of non-paying Ontario users purged'''
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* No access from free accounts
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* No further access from any free accounts
 
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=== Why ? ===
 
=== Why ? ===
  
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Unfortunately, the only way we can continue to supply the disk space is by charging a fee to cover maintenance and operating costs. We do so on a cost recovery basis, i.e. we charge as much as we must, and as little as we can.
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Unfortunately, operating expenses will no longer be covered by CFI MSI-2 resources. The only way we can continue to supply resources is by charging a fee to cover maintenance and operating costs. We do so on a cost recovery basis, i.e. we charge as much as we must, and as little as we can.
  
 
=== How ? ===
 
=== How ? ===
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=== Migration Q&A ===
 
=== Migration Q&A ===
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* '''Q''': Will user support continue ?
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* '''A''': Yes. Our team will continue to support researchers from Queen's and other Ontario Universities irrespective of the systems they are working on. Our main commitment is to the researcher and their science, not to the platform.
  
 
* '''Q''': Who migrates ?
 
* '''Q''': Who migrates ?
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: '''A''': All users who currently hold an hpcXXXX (Compute Canada) free account, and do not want a charged account.
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: '''A''': All users who currently hold an hpcXXXX (Compute Canada) free account, and will not continue on a charged account.
  
 
* '''Q''': How much would it cost to continue the system ?
 
* '''Q''': How much would it cost to continue the system ?

Revision as of 18:27, 1 February 2019

Outline

Frontenac serves as CAC's main compute cluster. Until March 31, allocations from the 2018 Resource Allocation Competition of Compute Canada ("RAC 2018"), are running on this cluster. Furthermore, the cluster is accessed by researchers with a "contributed" priority allocation, and on an "opportunistic" scheduling basis with low priority.

Since the cluster will not be among the allocatable system for the 2019 Compute Canada allocation round ("RAC 2019"), the operation of Frontenac will be on a cost-recovery basis from April 1, 2019 onward. For details about the fee structure, please see our Frontenac Fee Wiki page for details. This is an important change that affects both compute access and the usage of storage.

From April 1, 2019 we will not provide compute services and/or storage capacity on Frontenac free of charge.

If you are currently using Frontenac for computations, and are looking for another system that offers cycles free of charge, please consult the available resources at Compute Canada. Allocations of larger resources require an application, but "opportunistic" use (Rapid Access Service or RAS) is available also.

Compute Ontario has kindly offered to provide temporary storage (located at the [Graham] Compute Cluster) for those of our current users who need to move their data and presently do not have sufficient allocation to accommodate them.

Note that the CAC team will continue to provide support for researchers from Queen's and other Ontario Universities, irrespective of the systems they are working on. Our main commitment is to the researchers, not the platform.

Important Deadlines

Date Migration Event
April 1, 2019
  • Access to Compute Cluster from free accounts ends
  • Limited access for Queen's / Ontario users for data retrieval
  • Data for closed hpcXXXX accounts are purged for non-Ontario users)
September 1, 2019
  • Data of non-paying Ontario users purged
  • No further access from any free accounts

Migrating off the Frontenac cluster

Note: Any data on the Frontenac file system must be moved off the system by April 2019. Retention of data beyond that time requires an arrangement involving fees. Please consult our fees guide for details. The Arrangement has to be made before the deadline of April 1, 2019 to avoid data purges.

For technical information of how to upload/download data from our system, see our file transfer help page

Note that the responsibility of data migration lies with the user. We do not control access to the target systems and cannot do the data transfer for you. We will assist you with technical issues but you have to arrange for the disk space on the target system.

Why ?

Unfortunately, operating expenses will no longer be covered by CFI MSI-2 resources. The only way we can continue to supply resources is by charging a fee to cover maintenance and operating costs. We do so on a cost recovery basis, i.e. we charge as much as we must, and as little as we can.

How ?

Data can be transferred to another system using scp/sftp from a command line or through a secure transfer client. Another option is to establish a Globus individual access point on our system. Please consult our guide about data transfer. Note that the transfer should be done using our login nodes (login.cac.queensu.ca) or a data transfer node we installed for this purpose (transfer.cac.queensu.ca). If you encounter issues with moving data, please contact us through our ticketing system.

Migration Time Table

December 2018 - March 2019
  • Monthly reminders about the need to migrate data
  • RAC access, general "opportunistic" access continues
  • Both access types are free
  • Storage is free
  • Users are asked to make arrangements for charged access
April 1, 2019
  • Access changes from free to charged
  • Users covered by agreement continue to access systems as before
  • All jobs of users without agreement are terminated
  • Non-paying users from outside Ontario:
    • All access stops.
    • Jobs terminated.
    • Data are subject to purge.
    • This includes users with a 2018 RAC allocation.
  • Ontario non-paying users (including Queen's, CAC consortium, SNO, OBI, etc):
    • Access for data management still possible.
    • Data are migrated to tape (nearline).
    • No job submission.
    • No access to compute cluster.
September 1, 2019
  • All data not covered by charged accounts are subject to purge.
  • This includes migrated data and backups (tape).

Migration Q&A

  • Q: Will user support continue ?
  • A: Yes. Our team will continue to support researchers from Queen's and other Ontario Universities irrespective of the systems they are working on. Our main commitment is to the researcher and their science, not to the platform.
  • Q: Who migrates ?
A: All users who currently hold an hpcXXXX (Compute Canada) free account, and will not continue on a charged account.
  • Q: Where can I continue to use resources for free ?
A: Compute Canada systems offer free resources based on allocations from a competition (RAC), or to a limited extend on "opportunistic" usage (RAC).
  • Q: Can I run my programs somewhere else?
A: Most execution scripts, pipelines, etc will still work on another system, as Frontenac is very similar to other Compute Canada systems.
  • Q: Do I copy my files over myself ?
A: Yes. We cannot do the data transfer for you. We will assist you with technical issues, but we cannot arrange for permanent space on other systems.
  • Q: I have a lot of data and don't know where to put it.
A: We have made arrangements with SHARCNET to store data temporarily on Graham. You can use the default space allocations there to store your data, and ask for extended storage if necessary. Keep in mind that this is meant as a temporary solution before you move the data to the system where you continue your work.
  • Q: Is this optional ?
A: No. The move must be done by April 1, 2019, as we have to cover our operating and maintenance costs.
  • Q: Can I decide when to move ?
A: Yes, as long as the move is completed by April 1.
  • Q: Will this disrupt my research ?
A: We hope that you continue your research on our systems and pay the associated fees. In that case things will be continuing without any disruption. If you decide to move to another system that offers free access, you should plan the data migration as early as possible to smooth over any issues that the migration entails. We will do our best to assist you with this, but we cannot do it for you.
  • Q: I have a RAC 2018. Does this apply to me ?
A: Yes. The bulk of data has to be moved by April 2019. This is particularly important if you are a researcher outside Ontario. We may be able to help make arrangements prior to the onset of the 2019 allocation on a case-by-case basis. Contact us.
  • Q: I have contributed hardware to CAC. Does this apply to me ?
A: Contributed accounts were issued on the basis of a prior agreement and will not be subject to this as long as the agreement continues.

Help

If you have questions that you can't resolve by checking documentation, email to cac.help@queensu.ca.

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