Resolved Issues#
2024-10-28 Release#
QPU Solvers: Solution Quality for Fast Anneal Degraded#
Due to a software issue, performance of the fast-anneal feature on QPU solvers in the Leap service was degraded from 2024-10-02 to 2024-10-28. Affected users have been contacted by D‑Wave.
2024-10-21 Release#
Certain Problems Submitted to QPU Solvers Failed with HTTP 403#
Certain problems submitted to QPU solvers failed with the 403 Forbidden
HTTP status code. This issue was due to overzealous firewall rules
in the Leap service.
Compression on problem upload for QPU solvers, which is only available for Ocean SDK version 8 or greater and is enabled by default, made this issue more likely to occur.
2024-10-02 Release#
Nonlinear-Program Solver Did Not Reject Invalid Models#
The dwave-optimization package
version 0.3.0 or earlier allowed models that attempted to access an array
outside the array’s index range. From 2024-09-18 to 2024-10-02,
the nonlinear-program solver, hybrid_nonlinear_program_version1,
did not properly reject problems with such models.
Affected users have been contacted by D‑Wave.
Advantage_system4.1: Temporarily Degraded Solution Quality#
The Leap service’s Advantage_system4.1 QPU solver’s performance was
degraded from 2024-09-24 at 11:41 PM Pacific time to 12:12 AM the next
morning. Affected users have been contacted by D‑Wave.
Solver Parameters and Properties Were Not Displayed for Some Users on the Dashboard#
For some users, clicking a solver in the Solvers section on the dashboard did not display the solver’s properties and parameters; instead, some text that included N/A was displayed.
2024-08-07 Release#
Error Received When Failing to Join Project#
When invited to join a project, a very small number of existing Leap service users received an error when clicking the email’s project acceptance link. Affected users have been contacted by D‑Wave.
2024-07-26 Release#
Advantage_system5.4: Degraded Solution Quality#
A small number of problems submitted to the Advantage_system5.4 solver
from 2024-07-10 to 2024-07-24 may have experienced degraded solution quality.
Affected users have been contacted by D‑Wave.
2024-07-16 Release#
Retrieving SAPI Tokens via the Leap Service’s API Failed#
From 2024-07-10 to 2024-07-16, attempting to retrieve a SAPI token via the Leap service’s API (for example, while configuring access to solvers in the Leap service from a Codespace) failed with an HTTP 404 error.
2024-07-10 Release#
Leap Admin: Global Search on Members Could Have Failed#
When an organization administrator typed a user’s name in the global-search bar and then clicked on a result, an HTTP 404 error was displayed instead of the user profile.
Leap Admin’s “Export to JSON” Did Not Download Sample Sets#
Some Leap service administrators may have received an error when attempting to export a solver’s returned sample set to JSON format.
2024-06-12 Release#
Advantage2_prototype2.3: Performance Temporarily Degraded#
The Advantage2_prototype2.3 solver’s performance was degraded from
2024-06-03 at 2:45 PM Pacific time to 8:05 AM the next morning. Problems
submitted using the fast-anneal protocol with anneals faster than 300 ns were
affected.
2024-05-15 Release#
Some Administrators Could Not Access Leap Admin#
From 2024-05-01 to 2024-05-02, some administrators were automatically logged out of their Leap service accounts when attempting to access Leap Admin.
2024-05-08 Release#
Advantage2_prototype2.3 Solver: Some Submissions May Have Had Degraded Solution Quality#
From 2024-05-01 to 2024-05-08, some problems submitted to the
Advantage2_prototype2.3 solver might have experienced a small degradation
in solution quality resulting from a now-corrected, minor shift in the inductance
of about 7% of the processor’s qubits.
For more information, contact D‑Wave Customer Support.
2024-05-01 Release#
Older Codespaces May Have Required Rebuild#
Due to a backwards-incompatible upgrade to the Solver API introduced on March
20, 2024, upgrading the Ocean SDK
to version 6.9.0 or later was recommended if planning to use the dwave auth login
CLI command.
Codespaces created from a D‑Wave GitHub repository before February 26, 2024, requiring reauthorization in the Leap service may have encountered an issue when attempting to log back into an existing Codespace after logging out. This issue could be resolved by launching the Codespace and running the following command in the VS Code command palette to rebuild the workspace with the latest Ocean SDK:
Codespaces: Full Rebuild Container
Advantage2_prototype2.3 Solver: Unstable Behavior at Short Fast-Anneal Times#
For the Advantage2_prototype2.3 solver, unstable behavior occurs when
fast-anneal times are below about 5 ns;
however, this unstable behavior has no effect on problem submissions
because the lower limit for anneal time, as returned by the fast_anneal_time_range
solver property, is now 5 ns.
2024-04-18 Release#
Could Not Retrieve a SAPI Token via the Leap Service’s API#
Due to an issue affecting OAuth 2.0 access to some of the Leap service’s API endpoints, OAuth clients were unable to fetch SAPI tokens or the list of projects from the Leap service.
The issue manifested in the Ocean CLI when configuring access to solvers in the Leap service,
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 the Ocean SDK installed. For example,
when running dwave auth login --oob && dwave config create --auto-token,
the Ocean software’s 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.
2024-04-17 Release#
Sometimes Access Renewal Dates Were Outdated#
If a project’s Anniversary Date changed, sometimes the Access Renewal date as shown on the dashboard was not updated to the project’s new Anniversary Date.
2023-12-13 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 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 Release#
Leap Service’s 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 service’s 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 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 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 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 Release#
2023-08-09 Release#
Leap Service’s 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 service’s IDE.
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 Release#
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 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>.
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 the Leap service.
2023-05-17 Release#
Reverse Annealing May Have Returned Low-Quality Solutions#
An issue with the reverse-annealing
protocol, affecting all QPU solvers in the Leap service 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 Customer Support if needed.
2023-04-05 Release#
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 Release#
2023-03-08 Release#
2023-02-22 Release#
Advantage_system4.1 Solver: 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 Release#
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.