Resolved Issues

Table 68 Release Summary

Release Date

Description

2023-05-17

Reverse Annealing May Have Returned Low-Quality Solutions

2023-04-05

Leap Hybrid CQM Solver Failed to Solve Some Previously Solved Problems

2023-03-22

Leap’s Advantage_system6.1 Solver: Unavailable March 12-13, 2023

2023-03-08

Leap’s Advantage_system5.3 Solver: Unavailable February 15-24, 2023

2023-02-22

Leap’s Advantage_system4.1 QPU: Performance Temporarily Degraded

2023-01-25

Leap Hybrid BQM Solver: Some Problems Failed with an Illegal Memory Access Error

2022-10-05

Leap CQM Hybrid Solver: Problems in Pending State Longer Than Expected

2022-08-24

Leap Admin: Solver Usage Report Data for End Date Was Not Included

2022-07-27

Some CQM Problems May Have Taken Longer Than Expected to Solve

2022-07-13

Running pip freeze and pip list Did Not Output Python System Packages By Default

2022-06-29

Leap IDE and Leap Sessions Could Have Been Out-of-Sync

2022-06-01

Error Occurred When Clicking the Send Invitation Button Multiple Times

Solver-Access Time Incorrectly Displayed for Expired/Inactive Projects

2022-05-04

Changing Unit of Time Incorrectly Converted Solver-Access Time

2022-03-09

Leap Dashboard Incompletely Displayed Large Problem Results

2022-02-16

Solver Time Used Was Sometimes Incorrectly Displayed

2022-02-09

Two Problem Submissions Incorrectly Failed

2021-12-15

Project Admins Can Simultaneously Revoke Multiple Invitations

2021-11-17

Usage Statistics Graph Displayed Incorrectly on Leap Dashboard

2021-11-03

Leap Administration Not Resending Invitations

2021-10-20

Readout Fidelity Issue in Advantage_system4.1

2021-10-13

Resolved Issues Affecting Leap Administration

2021-09-27

Leap IDE Workspace Outage

Problems Completed Panel in the Leap Dashboard is Overbroad

2021-08-25

DQM Solver Scaling Issue

QPU Access Time Issue in Leap Dashboard

2021-02-10

Energy Offset Issue Affecting Some Hybrid Problems

MFA Email Issue

2021-01-27

Removed Statistics Panel on Leap’s Dashboard

Assign Problem Labels

2021-01-13

Incorrect Energies Returned by Hybrid Solver

2020-11-04

Failures on Version 2 of Hybrid BQM Solver

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

Leap’s Advantage_system6.1 Solver: Unavailable March 12-13, 2023

From 12:05 AM PST on March 12, 2023 to 3:02 PM PDT on March 13, 2023, the Advantage_system6.1 solver was unavailable.

2023-03-08 Leap Release

Leap’s Advantage_system5.3 Solver: Unavailable February 15-24, 2023

From about 1400 Pacific time on February 15, 2023 to 1530 Pacific time on February 24, 2023, the Advantage_system5.3 solver was unavailable.

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

Error Occurred When Clicking the Send Invitation Button Multiple Times

When inviting users or project administrators to a project, clicking the Send Invitation button multiple times in quick succession caused an Unexpected error occurred message to appear and more than one invitation to be sent. However, only the last invitation that was sent was valid.

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.

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.