The Colorcheck module is particularly sensitive to memory availability. If Imatest runs out of memory, the following line appears in the command window and in the Error Occurred window. The total physical memory (RAM) for this system (shown above) is 7989MB (i.e., 8GB). Memory: Array max/total = 2047/3375MB MemUsedMATLAB = 448 System = 8181MB When Imatest starts, two lines in the command window display memory availability. There is no advantage to having over 4 gigabytes of memory if you run a 32 bit OS. A 64-bit OS should be installed on 64-bit hardware. Many users install 32-bit operating systems on 64 bit hardware. There is a 64 bit version of Imatest available, but only required if you are testing extremely large images ( > 80 Megapixels). The 32 bit version of Imatest running on a 64 bit operating system will be able to access up to 4GB of memory. While 32 bit operating systems will run Imatest, the size of the images you can test is limited to the size of your available memory, which is often under 1 Gigabyte.Ī 64 bit operating system is recommended for using Imatest to test images larger than 10 megapixels. Imatest will not use virtual memory for its calculations so a system with adequate available memory is important to the successful operation of the program. Usually the PC system is already using several gigabytes of memory, leaving little available memory to test images with Imatest.

While 32 bit has always been problematic (see below), we continued to support it as long as possible, but MATLAB ended support for 32 bit as of release 2016a.ģ2 bit operating systems typically access no more than around 3.2 Gigabytes of total memory… even with 4GB installed. There are many advantages to running an operating system and software that matches your computer’s architecture, which is probably 64 bit. If the value that corresponds to Processor starts with EM64T or ia64, the computer is running a 64-bit version of Windows.A 64-bit OS with 8GB of RAM is recommended.If the value that corresponds to Processor starts with x86, the computer is running a 32-bit version of Windows.When System Summary is selected in the navigation pane, locate Processor under Item in the details pane. Method 2: View System Information windowģ. For a 32-bit version operating system: Windows Server 2003 Enterprise Edition appears under System.For a 64-bit version operating system: Windows Server 2003 Enterprise 圆4 Edition appears under System.The operating system is displayed as follows: Method 1: View System Properties in Control Panelģ. If you have Windows Server 2003, there are two methods to determine whether you are running a 32-bit or a 64-bit version.

32 or 64 bit system