1Contributions are accepted via GitLab merge requests to 2 3 https://gitlab.com/petsc/petsc 4 5If you are planning a large contribution, we 6encourage you to discuss the concept on the petsc-dev@mcs.anl.gov mailing list and interact 7with us frequently to ensure that your effort is well-directed. 8 9PETSc is distributed under a 2-clause BSD license (see LICENSE). The 10act of submitting a pull request or patch (with or without an explicit 11Signed-off-by tag) will be understood as an affirmation of the 12following: 13 14 Developer's Certificate of Origin 1.1 15 16 By making a contribution to this project, I certify that: 17 18 (a) The contribution was created in whole or in part by me and I 19 have the right to submit it under the open source license 20 indicated in the file; or 21 22 (b) The contribution is based upon previous work that, to the best 23 of my knowledge, is covered under an appropriate open source 24 license and I have the right under that license to submit that 25 work with modifications, whether created in whole or in part 26 by me, under the same open source license (unless I am 27 permitted to submit under a different license), as indicated 28 in the file; or 29 30 (c) The contribution was provided directly to me by some other 31 person who certified (a), (b) or (c) and I have not modified 32 it. 33 34 (d) I understand and agree that this project and the contribution 35 are public and that a record of the contribution (including all 36 personal information I submit with it, including my sign-off) is 37 maintained indefinitely and may be redistributed consistent with 38 this project or the open source license(s) involved. 39