Do qiskit simulators run locally or on IBM cloud servers? It seems that each time I have used them, my computer goes into max CPU, and sometimes the simulation runs out of memory, exiting with out of memory error message.
Both, depending on the backend that you choose. If you install and run Aer, then the simulation is local. But you can also run a simulator via IBMQ, as if it was a real device. There are several simulator backends on the cloud, like ibm_qasm_simulator. They are listed at the bottom of the webpage https://quantum-computing.ibm.com/services?systems=yours.
I am looking at an architecture where we have the BluePrism runtime running inside a Citrix Desktop.
I see plenty of articles that talk about processing a Citrix desktop as part of an automation process, but as far as I can see they talk about firing up a Citrix app from within a process. In other words they have a physical laptop that runs the BluePrism runtime, and part of the process requires it to run a citrix desktop, and automate that. I understand that this scenario is problemtic, and requires you to use Surface Automation.
In my case we have a set of physical laptops, and we would like to completely replace these laptops with VMs. So the runtime will be in the same desktop as the target apps.
Question is, does this work, or are we still faced with having to convert all our BluePrism processes to use Surface Automation to get this architecture to work?
This works with VMs and Surface Automation isn't necessary in that case. All your objects will be doing is attach the target apps by calling their runtime process names on the VM desktop, or launch them from the parent (i.e. folder in the root desktop/server) by providing the path in your application model, and then have your BP objects launch attach to them. Surface Auto may be necessary if you are planning to interact with the actual Citrix Receiver (e.g. icons), but not the apps themselves once they are active on the VM desktop. Of course, all this assuming BP will be also on the VM desktop environment.
We do have problems with GWT hosted mode running in Eclipse Ganymede (Windwos XP 3GB RAM). When we start our application in hosted mode it takes very long to start and also the transactions once the application is started are taking minutes to react. It seems as if it takes very long to communicate between Javascript and server.
The processor shows almost no load during this time. Even compiling and starting from an external browser does not help.
Strange is that we do have two other computers (one Windows XP one Linux) with exact the same setup where the hosted mode is working at normal speed without any problems for the same application.
Do yourself a favour, move to GWT 2.0 (currently in RC2) and take advantage of Out Of Process Hosted Mode (OOPHM), which lets you debug straight in the browser, and is lightning fast!
http://code.google.com/p/google-web-toolkit/wiki/UsingOOPHM
Try removing all breakpoints. It helped me in such a scenario. Apparently if you place breakpoints in critical points in the program, it can cause everything to grind to nearly a halt in hosted mode.
I second the suggestion to switch to GWT 2. Please note, however, that with GWT 2, hosted mode is very slow in Chrome. I recently switched from 1.7 to 2.0 and found hosted mode to be very slow ... until I switched to Firefox. Reason for this is that Chrome's process model is not benificial to OOPHM, at least now.
A few ideas:
Does the slow Windows box have a heavily fragmented hard-drive?
Is it a specific database query that's taking a long time once the application is running, or are all interactions slow?
Are the project files on a local filesystem?
Is the database on a local filesystem?
If so, does it have the same size data set as the other machines?
If not, are they on different subnets or have different bandwidth available?
At my work I currently have my development environment inside a Virtual Machine. When I need to do work from home I copy my VM and any databases I need onto a laptop drive sized external USB drive. After about 10 minutes of copying I put the drive in my pocket and head home, copy back the VM and databases onto my personal computer and I'm ready to work. I follow the same steps to take the work back with me.
So if I count the total amount of time I spend waiting around for files to finish copying in order for me to take work home and bring it back again, it comes to around 40 minutes! I do have a VPN connection to my work from home (providing the internet is up at both sites) and a decent internet speed (8mbits down/?up) but I find Remote Desktoping into my work machine laggy enough for me to want to work on my VM directly.
So in looking at what other options I have or how I could improve my existing option I'm interested in what strategy you use or recommend to do work at home and keeping your code/environment in sync.
EDIT: I'd prefer an option where I don't have to commit my changes into version control before I leave work - as I like to make meaningful descriptive comments in my commits, committing would take longer than just copying my VM onto a portable drive! lol Also I'd prefer a solution where my dev environment stays in sync too. Having said that I'm still very interested in your own solutions even if they don't exactly solve my problem as best as I'd like. :)
A Distributed / Decentralized Version Control System solution will suit your needs, Git, Bazaar, Mercurial, darcs... you have plenty alternatives.
Use a version control software like SVN, SourceOffSite, etc. You just have to check-in all your changes and get the latest changes when you want to sync.
Or you can use Windows Live Sync -> https://sync.live.com/foldersharetolivesync.aspx
Hasn't anyone recommended rsync? Use an rsync client to send the diff between files. You can apply these diffs thus bringing your file up-to-date. For the smallest file transfer it's probably the best idea.
I simply use an external portable notebook drive and do all my work on that. All my PCs have it set to the same drive letter. So no copying anything .. I've not attempted to run VMs this way, however, but I don't see any reason it shouldn't simply work.
i use dropbox.
We use Citrix and then I do a remote desktop connection to my PC at work. It is not the fastest solution in the world, but it does eliminate the problem of keeping two or more workstations up-to-date.
Here is a solution I use.
Set up a VPN between the office network and the laptop.
Install the VisualSVN Server
Load all projects in the SCC.
When at the office I check out a project, work on it and then check it in. When at home or around the world I connect to the office via VPN, check out my project, do my thing then check it in. Via the VPN connection I can also RDP to my dev boxes and or servers.
Hope this helps. Good luck!
I either connect remotely to the office SVN, or VPN in and remote desktop my dev or desktop machine and carry on working. It's very rare I sync any files, but when I do it's usually with DropBox (although you can't really do that with large files).
Write program, that will syncronize all your data through internet, and then shutwodn your computer, so at the end of the day you launch it, and go home, and when you come home all data is already there
We work with a distributed team, so it is vital everyone has easy and secure code repository access. For this, we use SVN over ssl/https. It works great, reliably and secure.
Depending on the VM software you are using why don't you set up 2 different VM disks, keep your user profile/dev files on one disk and the OS and other programs that change rarely on the other.
This way you can probably get away with only having to copy the larger disk image when you've installed something new and end up only copying a single virtual disk containing your work.
Just setup a SVN server at home, forward your router port and get on with your life. rsync is also a good, fast solution. Just remember to use it over SSH.
I had a similar problem. But fortunately we had a source control server (TFS) configured so I use to work only from the local Virtual Machines stored on my external drive and than check in the required files to the TFS as an when required.
you haven't specified the OS and virtualization system, but if you're working VM images that can be mounted, e.g. XEN on linux, then you could mount the image and sync it via rsync.
i connecting to the office net work and download the lates version form svn
use the Dev mysql server
so i am just like anther computer in the office network
I imagine that most of the time spent copying involves the database. Is that right? If so, can you not simply connect to your work DB from home using your VPN connection?
You would still copy your source files (or use a source code control system as others have suggested), but this would only take a fraction of the time.
If all you need is a virtual machine from your work computer, then you could mount a remote catalog (using nfs or smb) where is your virtual machine files store and run that virtual machine from there. This should be faster than using remote desktop.
I also use DropBox, and that is key because it is important to keep it simple.
It is generally better if you can have some type of remote desktop ability, because this will allow you to use a standard workstation configuration, and it will allow for consistent connection to network resources (database server, business servers like workflow, etc).
Working offline, in my opinion, is ok for certain tasks, but overall there are obstacles for systems which connect to other resources (unless you plan to move those resources to your home box).
It was a problem for me too. So, the company bought me a laptop, and I do my work on it, at home or anywhere else.
I have a set up where a folder on one machine is synced to a folder on another machine. any changes to the contents on one machine is also made on the other machine within a minute.
So you could sync the top level folder of your work files, and have then sync to your home machine. What I like about this is that syncing is completely transparent. As far as the user experience goes, I'm simply using the file system. No external app to interact with.
I use Live Sync Live Sync from Microsoft to this. You'll need to create a Windows Live ID to use this system. It works for windows and macs.
Dropbox and Microsoft's Live Sync are good options that have already been mentioned. My personal favorite is Live Mesh, also from Microsoft. The one great feature that puts it above the other two, in my mind, is the ability to specify which folders get synched on which computers, and where the folders are located. So, for example, I synch my Visual Studio 2005/Projects folder between my work machine and my dev box at home, and I synch Visual Studio 2008/Projects between my side gig VM and my home dev box.
i have a macbook with all my dev software on it; when i go to work, i start it in target firewire mode and plug it into my work macpro with the fast processor, lan connection, big monitor, etc. this way i never have to leave my user folder but i have access to all the software and hardware available at work.
Why don't you just use version control? A DVCS?
Find here a tutorial on DVCS for Windows users (very simple)
http://codicesoftware.blogspot.com/2010/03/distributed-development-for-windows.html
Some ideas:
Use network storage (with SSD cache if speed is a concern), either for your code or to host your VM.
Separate data and OS into two virtual disks in your VM.
Google drive, Onedrive, Dropbox etc.
If you use Visual Studio (Code), try the Live Share extension.
Dockerize your environment. Alternatively, I keep a bash script for all the setup I did, so I could almost one-click reinstall my dev environment anywhere.
Use a second version control, covering your whole work directory. Commit and push everything before switching environments, then pull and hard reset your commit in another machine.