Resolved Issues#
2024-04-18 Leap Release#
Could Not Retrieve a SAPI Token via the Leap API#
Due to an issue affecting OAuth 2.0 access to some Leap API endpoints, OAuth clients were unable to fetch SAPI tokens or the list of Leap projects.
The issue manifested in the Ocean CLI when configuring access to Leap solvers,
for example when running dwave config create --auto-token or
dwave leap project token.
You may have encountered this issue in your
GitHub Codespace with Ocean installed. For example,
when running dwave auth login --oob && dwave config create --auto-token,
the Ocean CLI authorization command suggested for
D-Wave examples
opened in your GitHub Codespace, failed with error message
Failed to fetch SAPI token from Leap API.
2023-12-13 Leap Release#
Advantage_system5.4 Solver: Degraded Solution Quality for Some Problems#
From 03:00 AM to 05:20 AM Pacific time on 2023-11-30, some problems
experienced degraded solution quality on the Advantage_system5.4 solver.
2023-11-30 Leap Release#
Advantage_system5.4 Solver: Degraded Solution Quality for Some Problems#
From 01:00 to 02:00 AM Pacific time on 2023-11-16, some problems experienced
degraded solution quality on the Advantage_system5.4 solver.
2023-10-04 Leap Release#
Leap IDE Workspaces Intermittently Inaccessible#
On 2023-09-28, from 13:02 to 16:30 PM Pacific time, users were intermittently unable to create new workspaces or access existing workspaces in the Leap IDE.
Leap Admin: Searching by Problem ID Did Not Return Results#
On a project’s Problem Status page, searching for a problem by its ID in the Search by problem ID field did not return results in the Problem Status table.
2023-09-20 Leap Release#
Leap Admin: Project Administrators Could Not Be Directly Invited#
A project administrator could not directly invite another project administrator via Invite > Project Admin.
2023-09-07 Leap Release#
Solver Usage Occasionally Underreported#
Occasionally, the consumed solver-access time for problems was not updated in the following places:
The dashboard’s Monthly Access Usage Summary
The Leap Admin Project Members page’s Project Usage for Month column
In addition, the consumed solver-access time for such problems was not included in the report generated via the Leap Admin Reporting page.
Note
The amount of time charged to your account (that is, the charge time) was not affected by this issue.
2023-09-06 Leap Release#
Advantage_system5.4 Solver: Underperformance for Some Short Anneal-Schedule Segments#
For the Advantage_system5.4 solver, this release improves performance for fast mid-anneal quenches and large h-gain changes over short time segments of the annealing schedule (defined as piece-wise linear curves).
For more information, see the anneal_schedule and h_gain_schedule solver parameters.
2023-08-23 Leap Release#
Leap’s Advantage_system4.1 QPU Solver: Temporarily Unavailable#
From approximately 1:00 AM to 04:04 AM Pacific time on 2023-08-21, the
Advantage_system4.1 QPU solver’s solution quality was degraded. If you
submitted problems to the Advantage_system4.1 QPU solver during this time
frame, we recommend that you resubmit them. To address this problem, the solver
was offline from 04:04 AM on 2023-08-21 until 12:59 PM (Pacific time) on
2023-08-22.
2023-08-09 Leap Release#
Leap IDE Workspaces Inaccessible#
On 2023-08-01, from 08:53 AM to 14:49 PM Pacific time, users were unable to create new workspaces or access existing workspaces in the Leap IDE.
Leap’s Advantage_system6.2 Solver: Performance Temporarily Degraded#
From 11:03 to 11:10 PM Pacific time on 2023-08-03, the Advantage_system6.2
solver’s performance was degraded.
2023-07-12 Leap Release#
Leap Hybrid BQM Solver: Some Problems Stuck in Pending State#
From approximately 01:00 to 10:45 AM Pacific time on 2023-07-04, some problems submitted to the hybrid binary quadratic model (BQM) solver were stuck in a pending state. These problems were cancelled and had to be resubmitted.
2023-06-28 Leap Release#
Retrieving a List of Problems: Timestamps Were in Milliseconds Instead of Microseconds#
In the response to a request to
problems, timestamps for the submitted_on
and solved_on attributes, which have microsecond resolution,
were rounded to milliseconds.
This issue is now resolved for problems submitted as of approximately 15:00 PST on 2023-06-28. However, if you need to see the timestamps for the aforementioned attributes in microseconds for problems submitted before this issue was fixed, retrieve individual problems via problems/<problem_id>.
Leap Hybrid CQM Solver: Some Problems Failed on 2023-06-28#
From approximately 07:00 to 10:30 AM PST on 2023-06-28, some problems failed on the hybrid constrained quadratic model (CQM) solver.
Advantage2_prototype1.1 Solver: Sign Reversed for Anneal Offsets#
For the Advantage2_prototype1.1 solver, the sign
for the anneal_offsets solver parameter was reversed;
that is, applying a positive value resulted in a negative offset
and vice versa.
Note
This issue has been present since this solver first came online in Leap.
2023-05-17 Leap Release#
Reverse Annealing May Have Returned Low-Quality Solutions#
An issue with the reverse-annealing
protocol, affecting all QPU solvers in Leap between April 19 and May 17, 2023,
may have compromised solution quality. This affected problems submitted with the
reverse-annealing protocol and the reinitialize_state
parameter set to False; no other submissions were affected. For the affected
problems, the initial state was not correctly set.
If you submitted such problems during the relevant time frame, we recommend that
you resubmit them. Contact D-Wave Support if needed.
2023-04-05 Leap Release#
Leap Hybrid CQM Solver Failed to Solve Some Previously Solved Problems#
Because of a code error in version 1.8.0, the hybrid constrained quadratic model (CQM) solver failed to return feasible solutions to some problems previously solved by version 1.7.2.
2023-03-22 Leap Release#
2023-03-08 Leap Release#
2023-02-22 Leap Release#
Leap’s Advantage_system4.1 QPU: Performance Temporarily Degraded#
From about 0200 to 0800 Pacific time on February 21, 2023, the Advantage_system4.1 QPU’s performance had degraded.
2023-01-25 Leap Release#
Leap Hybrid BQM Solver: Some Problems Failed with an Illegal Memory Access Error#
Certain jobs sent to the hybrid binary quadratic model (BQM) solver failed with the following error message:
cuMemAlloc failed: an illegal memory access was encountered.
2022-10-05 Leap Release#
Leap CQM Hybrid Solver: Problems in Pending State Longer Than Expected#
On September 30, 2022, problems submitted to Leap CQM hybrid solvers might have remained in a pending state longer than expected.
2022-08-24 Leap Release#
Leap Admin: Solver Usage Report Data for End Date Was Not Included#
On the Reporting tab, the date in the End Date field for the Custom Range option was not inclusive; that is, solver usage data on the specified end date was not included in the solver usage report.
2022-07-27 Leap Release#
Some CQM Problems May Have Taken Longer Than Expected to Solve#
For some problems with self-loops, the Leap Constrained Quadratic Model (CQM) solver may have run longer than expected, possibly exceeding the specified time_limit. The amount of excess runtime was proportional to the problem size; users were not charged for the excess runtime.
2022-07-13 Leap Release#
Running pip freeze and pip list Did Not Output Python System Packages By Default#
The pip commands for the Leap IDE were configured for user mode.
Thus, running pip freeze or pip list did not output
the IDE workspace’s preinstalled Python packages
by default because they were installed as system packages.
To output these IDE workspace packages, you had to use the --isolated option.
As of this release, the pip commands for the Leap IDE are no longer configured
for user mode and the output of pip freeze or pip list also includes
the IDE workspace packages by default.
2022-06-29 Leap Release#
Leap IDE and Leap Sessions Could Have Been Out-of-Sync#
Your Leap session could have timed out while you were logged in to a Leap IDE session. Consequently, you might still have been able to use your workspaces, but when submitting problems an error would have occurred fetching the API token.
2022-06-01 Leap Release#
Solver-Access Time Incorrectly Displayed for Expired/Inactive Projects#
After a user accepted their invitation and became active in a project that was expired or had not been activated yet, their maximum solver-access time was incorrectly displayed as 0 (zero) in the Solver Access Time column on the Users tab. This issue was display-only; the system correctly maintained the user’s maximum solver-access time.
2022-05-04 Leap Release#
Changing Unit of Time Incorrectly Converted Solver-Access Time#
If the Project Member Default Solver Access Time field contained a value greater than or equal to 60 and you changed the unit of time, the value was incorrectly converted.
2022-03-09 Leap Release#
Leap Dashboard Incompletely Displayed Large Problem Results#
Large problem results (for example, those from large hybrid jobs) sometimes take too long to process and are not displayed on the Solution and Timing tabs of the problem details dialog box, which opens when you click on your problem in the Problem Status section of the dashboard.
2022-02-16 Leap Release#
Solver Time Used Was Sometimes Incorrectly Displayed#
From 12 January to 15 February 2022, the solver access time was sometimes incorrectly displayed in the Leap Dashboard’s Time Used field and the Leap Admin solver usage reports.
This issue was display-only; the system correctly recorded solver usage.
Note
If you need corrected solver usage data for the affected dates, then rerun solver usage reports for those dates.
2022-02-09 Leap Release#
Two Problem Submissions Incorrectly Failed#
Due to a system error, two problem submissions incorrectly failed and returned an internal SAPI error.
Note
Failed problem submissions do not consume any solver access time.
2021-12-01 Leap Release#
Incorrect QPU Plots in Documentation#
The Energy (Joules) scale’s exponent for the annealing schedule plots in the following documents was incorrect. The plots have now been corrected.
QPU Solver Datasheet (specifically, the annealing functions plot)
The following Physical Properties documents on the QPU-Specific Characteristics page:
QPU-Specific Physical Properties: Advantage_system3.2
QPU-Specific Physical Properties: Advantage_system4.1
QPU-Specific Physical Properties: Advantage_system5.1
QPU-Specific Physical Properties: DW_2000Q_6
2021-11-17 Leap Release#
Usage Statistics Graph Displayed Incorrectly on Leap Dashboard#
The following issue, present in the previous release of the Leap Dashboard pages, is now resolved:
Usage Statistics Graph May Be Displayed Incorrectly
2021-11-03 Leap Release#
Leap Administration Not Resending Invitations#
The following issue, present in the previous release of the Leap Admin pages, is now resolved:
Resend Invitation Does Not Work
2021-10-20 Leap Release#
Readout Fidelity Issue in Advantage_system4.1#
Some qubits on the Advantage_system4.1 QPU suffered a slight degradation in readout fidelity.
2021-10-13 Leap Release#
Resolved Issues Affecting Leap Administration#
The following issues, present in the previous release of the Leap Admin pages, are now resolved:
Cannot edit Customer Reference ID field
Assign Project Admin menu missing
Adding email addresses to invitations fails due to mismatched letter casing
2021-09-27 Leap Release#
Leap IDE Workspace Outage#
From September 9 to September 14, 2021, users were unable to access existing workspaces and create new ones in the Leap IDE.
Problems Completed Panel in the Leap Dashboard is Overbroad#
In previous releases, in the Problem Completed panel on the Leap dashboard, the total number of completed problems shown included canceled and failed problems. However, such problems did not decrement solver access time and they did not appear in the usage statistics that show problems completed over time.
2021-08-25 Leap Release#
DQM Solver Scaling Issue#
In previous releases, the hybrid_discrete_quadratic_model_v1 solver returned different quality results for the same problem submitted at different scales.
QPU Access Time Issue in Leap Dashboard#
In previous releases, the QPU access time used by a hybrid problem was incorrectly displayed on the Leap dashboard. For example, a problem with QPU access time of 32,519 microseconds was shown in the in the dashboard as 0.33 seconds instead of 0.033 seconds. This display-only issue was limited to the Leap dashboard: the Ocean response object reported the QPU access time correctly.
2021-02-10 Leap Release#
Energy Offset Issue Affecting Some Hybrid Problems#
Some customers may have encountered an issue where the energy offset was
dropped for some sparse problems submitted to the
hybrid_binary_quadratic_model_version2 solver.
MFA Email Issue#
Some customers may have received multiple multi-factor authentication (MFA) emails when logging into Leap.
2021-01-13 Leap Release#
Incorrect Energies Returned by Hybrid Solver#
This release resolves an issue where some problems
submitted to hybrid_binary_quadratic_model_version2 returned noticeably incorrect energies.
2020-11-04 Leap Release#
Failures on Version 2 of Hybrid BQM Solver#
This release resolves an issue that affected problems submitted to the following hybrid solver: hybrid_binary_quadratic_model_version2.
Previously, problems with over 20,000 variables submitted to this solver may have failed.
Affected problems did not consume any solver access time.