Specifications

CHAPTER 1: INSTALLING ALTERA SOFTWARE
CONFIGURING THE LINUX USER ENVIRONMENT
ALTERA CORPORATION ALTERA SOFTWARE INSTALLATION AND LICENSING ■ 18
When you install the Quartus II software, the 64-bit version of the Quartus II
software is installed automatically.
■ To turn on 64-bit processing with the QUARTUS_64BIT environment
variable, refer to “QUARTUS_64BIT” on page 65.
■ To turn on 64-bit processing for individual Quartus II command-line
executables, pass the --64bit option to the command-line executable.
For example, you can enable 64-bit processing with the quartus_map
executable by typing the following command at the command prompt:
quartus_map --64bit r
■ To turn on 64-bit processing when opening the Quartus II software
GUI, type the following command at a command prompt:
quartus --64bit <project name>.qpf
If the Quartus II software is invoked using the --64bit option, all
subprograms started via the GUI or Tcl console will also be passed the
--64bit option.
■ You can also run Tcl commands through the interactive Tcl Console
window using the -s and --64bit command-line options to enable
64-bit processing. When you start an interactive shell with the -s
option in conjunction with the --64bit option, subsequent commands
within the Tcl shell console also use 64-bit processing. For example, to
turn on 64-bit processing with the Tcl Console window, type the
following command at the command prompt:
quartus_sh --64bit -s
Configuring the Linux User
Environment
Ensure that you perform the following steps for each user before starting the
Quartus II software for Linux for the first time:
1. Update each user’s PATH environment variable in the .cshrc file or
.bashrc file, which is located in the home directory, to include the bin
directory in the Quartus II system directory, which is usually the