mumps | - Based on MUMPS V1

by pahihu C Version: 1.70.2 License: No License

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | mumps Summary

mumps is a C library. mumps has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Based on [MUMPS V1 1.65] from Ray Newman. The master branch gets only bug fixes. If you are looking for speed, additional MUMPS commands and functions, object-oriented syntactic sugar, multiple volume sets, remote volume sets, online backup use the [stable] branch. Fixes: * faster Locate() * db_rekey fixes (level > 3) * prevent changed Garbit() blocks to leave the global buffer * fixes from MUMPS V1 1.66 and 1.70 * recursive indirection * $BP handling * $FNUMBER() memory leaks * EINTR handling during semaphore operations * $JUSTIFY() with negative numbers * external variable call memory leaks * standard handle redirection in JOB * socket communication options (SO_REUSEADDR, SO_NOSIGPIPE) * robust error handling in MUMPS environment initialization * no writer deadlock due to full dirty queue * removed race in global KILL (block removal) * atomic access in dirty/garbage queue * reverse $QUERY() for locals * $FNUMBER() suppress sign for 0 * JOB argument passing * fixed cached block usage in Get_data() when journaling turned off and writing * fixed Control-C handling * close database and journal file on dismount.

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Support

mumps has a low active ecosystem.

It has 19 star(s) with 2 fork(s). There are 4 watchers for this library.

It had no major release in the last 12 months.

mumps has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of mumps is 1.70.2

Quality

mumps has no bugs reported.

Security

mumps has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

mumps does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

mumps releases are available to install and integrate.

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Community Discussions

Trending Discussions on mumps

Switch from MPICH to OpenMPI

Pyoptsparse 'signal handler' error when using IPOPT

How to compute the Pearson’s correlation between variables using map() function?

Isolating graphs with significant p values

GEKKO (IPOPT) Solution Not Found due to Out of memory?

Issue installing petsc4py with Anaconda using pip, to indicate external PETSc directory

Azure Container Instance not showing anything via url after deployment

How can we store data in the MUMPS format?

A Python LDLT factorization for sparse Hermitian matrices, is there one?

RegEx for matching specific chars

QUESTION

Switch from MPICH to OpenMPI

Asked 2021-Mar-09 at 10:34

I have both mpich and openmpi in my Ubuntu 20.04.

...

ANSWER

Answered 2021-Mar-09 at 10:34

It seems all alternatives, except for one (link group mpi), were already set for openmpi

Source https://stackoverflow.com/questions/66535019

QUESTION

Pyoptsparse 'signal handler' error when using IPOPT

Asked 2021-Feb-16 at 16:11

Traceback (most recent call last):
  File "/home/rory/Documents/coloring_test/problemSolver.py", line 151, in 
    p.run_driver()
  File "/home/rory/.local/lib/python3.6/site-packages/openmdao/core/problem.py", line 663, in run_driver
    return self.driver.run()
  File "/home/rory/.local/lib/python3.6/site-packages/openmdao/drivers/pyoptsparse_driver.py", line 493, in run
    signal.signal(sigusr, self._signal_cache)
  File "/usr/lib/python3.6/signal.py", line 47, in signal
    handler = _signal.signal(_enum_to_int(signalnum), _enum_to_int(handler))
TypeError: signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object

...

ANSWER

Answered 2021-Feb-16 at 16:11

That error is caused by a feature that allows you to send a termination signal from the OS and get a clean exit from SNOPT. That feature seems to cause problems with some operating systems, and we should really turn it off by default.

You can work around the problem by setting:

Source https://stackoverflow.com/questions/66227835

QUESTION

How to compute the Pearson’s correlation between variables using map() function?

Asked 2021-Jan-22 at 09:30

I'm having trouble using one of the map() functions in r to compute the correlation between variables in a data frame. The question is "use one of the map functions to compute the Pearson’s correlation between Hepatitis A and each of the other 6 diseases, and return a double vector as the output."

The data shows each disease' yearly incidence rate each year.
I'm able to compute the correlation between Hepatitis A and other diseases by using the cor() function, but is there a way to use one of the map() functions to compute the correlation?

...

ANSWER

Answered 2021-Jan-22 at 03:13

You can create a vector of column names that you want to apply the cor function to and then use map_dbl to get a double vector.

Source https://stackoverflow.com/questions/65838778

QUESTION

Isolating graphs with significant p values

Asked 2020-Oct-12 at 15:34

For starters, the data comes from the us_contagious_diseases dataset, and the packages are tidyverse and ggpubr

...

ANSWER

Answered 2020-Oct-12 at 15:34

I guess you need to pre-calculate the p-values:

Source https://stackoverflow.com/questions/64320642

QUESTION

GEKKO (IPOPT) Solution Not Found due to Out of memory?

Asked 2020-Sep-02 at 14:09

I am getting following error while simulating a chemical reactor with 50 series CSTRs in Dynamic mode (m.options.imode=4) with time-series data. The steady-state runs just fine. Also, dynamic simulation seems to work for a simpler model with 15 CSTRs.

Is there a solution for this issue?

...

ANSWER

Answered 2020-Sep-02 at 14:09

If the simultaneous mode (IMODE=4) is too large and runs out of memory then I recommend that you try the sequential mode with (IMODE=7).

Source https://stackoverflow.com/questions/63688953

QUESTION

Issue installing petsc4py with Anaconda using pip, to indicate external PETSc directory

Asked 2020-Apr-04 at 15:49

I) The issue

I cannot install petsc4py in my Anaconda environment using pip.

Installing with conda doesn't work because it won't check my predefined PETSC_DIR and PETSC_ARCH environment variables during installation. numpy and cython are installed.

The error output by pip install is shown in section IV, below.

II) Versions

I have Ananconda 2020.02, installed with Python 3.7. My OS is Ubuntu 18.04.

III) Reproducing the issue 1) Make a user installation of OpenMPI 4.0.3

Configured using

...

ANSWER

Answered 2020-Apr-04 at 15:49

I was trying to install petsc4py with the then latest released version 3.12.0 while having installed and configured PETSc version 3.13.0. This now seems quite obvious that it wouldn't work, but there wasn't a clear mention of this in the documentation.

You can either install the none-released version using pip install https://bitbucket.org/petsc/petsc4py/issues/137/error-installing-in-anaconda-environment OR wait for it to be released officially!

Important conclusion

Make sure that your version of PETSc is the same as petsc4py!

Source https://stackoverflow.com/questions/61018455

QUESTION

Azure Container Instance not showing anything via url after deployment

Asked 2019-Aug-23 at 21:12

I am trying to deploy a docker image on azure. I am able to create the docker image successfully, also deploy successfully. But I am not able to see anything on my URL I specified to create the deployment for container. My app is a python flask app which also uses dash.

I followed this azure tutorial from documentation. The example app works. But my app does not. I don't know how to debug this or where I am going wrong.

Dockerfile

...

ANSWER

Answered 2019-Aug-23 at 21:12

As discussed, a couple of points to your question:

I think you meant to map the internal port 8050 to the external port 80. But this is not possible currently (Aug-2019) in Azure Container Instances. There is an open item on Uservoice for this. --ports 80 8050 means that you expose both ports, not that you map one to the other.
The actual problem, as we found out, was that the python flask app was listening only on 127.0.0.1, not on 0.0.0.0. So it was not accepting requests from the outside.

Source https://stackoverflow.com/questions/57630175

QUESTION

How can we store data in the MUMPS format?

Asked 2019-Jul-19 at 21:17

This is something we would like to do (storing data in the MUMPS format in Information Server) but it seems like we are unable to store data in this format. Does anyone have guidance or a workaround?

...

ANSWER

Answered 2019-Jul-19 at 21:17

Whether via 3rd party ODBC/JDBC drivers or adapters, you can use DS with/for MUMPs in my experience. I would recommend checking with their specific MUMPs vendor on the availability of ODBC/JDBC drivers. Otherwise, iWay (Information Builders) provides/supports adapters for this. Hope this helps.

Source https://stackoverflow.com/questions/57045041

QUESTION

A Python LDLT factorization for sparse Hermitian matrices, is there one?

Asked 2019-Jul-11 at 02:45

I have some large (N-by-N for N=10,000 to N=36,000,000) sparse, complex, Hermitian matrices, typically nonsingular, for which I have a spectral slicing problem. Specifically I need to know the exact number of positive eigenvalues.

I require a sparse LDLT decomposition -- is there one? Ideally, it will be a multifrontal algorithm and so well parallelized, and have the option of computing only D and not the upper triangular or permutation matrices.

I currently use ldl() in Matlab. This only works for real matrices so I need to create a larger real matrix. Also, it always computes L as well as D. I need a better algorithm to fit with 64GB RAM. I am hoping Python will be more customizable. (If so, I will learn Python.) I should add: I can get 64GB RAM per node, and can get 6 nodes. Even with a single machine with 64GB RAM, I would like to stop wasting RAM storing L only to delete it.

Perhaps someone wrote a Python front-end for MUMPS (MUltifrontal Massively Parallel Solver)?

I would have use for a non-parallel Python version of LDLT, as a lot of my research involves many matrices of moderate size.

...

ANSWER

Answered 2019-Jul-11 at 02:45

I need a better algorithm to fit with 64GB RAM. I am hoping Python will be more customizable. (If so, I will learn Python.)

If this were ever possible:

Source https://stackoverflow.com/questions/56938167

QUESTION

RegEx for matching specific chars

Asked 2019-Jun-06 at 19:06

Separating question text from question options. How do I get this?

I tried it but it doesn't work very well:

...

ANSWER

Answered 2019-Jun-06 at 17:34

If we only wish to detect three listed chars, we would be starting with a simple expression such as:

Source https://stackoverflow.com/questions/56481888

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Vulnerabilities

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