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License

DMRG++ is free software. See the file LICENSE, also in the code repository.

DISCLAIMER

THE SOFTWARE IS SUPPLIED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS, UNITED STATES GOVERNMENT, OR THE UNITED STATES DEPARTMENT OF ENERGY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. NEITHER THE UNITED STATES GOVERNMENT, NOR THE UNITED STATES DEPARTMENT OF ENERGY, NOR THE COPYRIGHT OWNER, NOR ANY OF THEIR EMPLOYEES, REPRESENTS THAT THE USE OF ANY INFORMATION, DATA, APPARATUS, PRODUCT, OR PROCESS DISCLOSED WOULD NOT INFRINGE PRIVATELY OWNED RIGHTS.

Dependencies

• GNU C++ compiler
• BLAS and LAPACK libraries
• PsimagLite
• perl is needed only to run the configure.pl script
• make is needed only to use the Makefile

Download with git

The easiest way to obtain DMRG++ is to use git to clone my github.com repository. You clone only once. After that, you can update the code to its latest revision by running git pull at any time.

$ cd someDirectory/
$ git clone https://github.com/g1257/PsimagLite.git
$ git clone https://github.com/g1257/dmrgpp.git

To later update the code(s) just say:

$ cd someDirectory/
$ cd dmrgpp/
$ git pull
$ cd ../PsimagLite/
$ git pull

Security and Code Integrity

You can run git rev-parse HEAD to get the SHA1 hash for the revision you are using. Downloading the code from github.com over secure http (https) is possible, make sure to specify https when cloning, as indicated above. Hash of the latest commit is also posted at
https://g1257.github.io/hashes.html.

Latest commit should always be signed. Keys at https://g1257.github.io/keys.html.

Download tar.gz or zip

As an alternative, you can go to github.com and click on the download button. This has the disadvantage that you will not be able to use git pull to update the code later.