# Not able to run parallel instances of chrome using robot framework **URL:** \ **Category:** Robot Framework\ **Created:** [17 June 2022 09:32 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016 "2022-06-17T09:32:23Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![bk-user](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/bk-user/32/1446_2.png) [@bk-user](https://forum.robotframework.org/u/bk-user)\ **Post date:** [17 June 2022 09:32 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/1 "2022-06-17T09:32:23Z")
Hi Team, I have automated script in robot for chrome browser. I have to run my robot script which is my single test case parallelly on multiple instances of chrome. I tried below command but its not launching multiple instances of chrome. Its just launching single instance pabot --processes 2 --listener robot-tc-listener --outputdir %PabotResu lts\_DIR% --output output.xml --report report.html --log log.html testfile.robot ---
**Author:** ![Wolfe1](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wolfe1/32/3386_2.png) [@Wolfe1](https://forum.robotframework.org/u/Wolfe1)\ **Post date:** [17 June 2022 12:19 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/2 "2022-06-17T12:19:24Z")
So Pabot by default splits up execution by suite level. So for example if you had a directory called “tests” that contained 4 robot files and you ran the command with that “tests” directory as the path then you would run two of those robot files at once. What I think you need is to use the command --testlevelsplit that will run your tests within a suite in parallel. From [GitHub - mkorpela/pabot: Parallel executor for Robot Framework test cases.](https://github.com/mkorpela/pabot) > –testlevelsplit > Split execution on test level instead of default suite level. If .pabotsuitenames contains both tests and suites then this will only affect new suites and split only them. Leaving this flag out when both suites and tests in .pabotsuitenames file will also only affect new suites and add them as suite files. ---
**Author:** ![bk-user](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/bk-user/32/1446_2.png) [@bk-user](https://forum.robotframework.org/u/bk-user)\ **Post date:** [19 June 2022 14:03 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/3 "2022-06-19T14:03:58Z")
@Wolfe1 I have single automated long test case in my suite. I have tried below two commands to launch 3 separate instances but it is just launching single chrome instance. 1.pabot --processes 3 --testlevelsplit test.robot 1. pabot --processes 2 --listener robot-tc-listener --outputdir %PabotRes ults\_DIR% --output output.xml --report report.html --log log.html test.robot Also tried below command - pabot --argumentfile1 test1.txt --argumentfile2 test2.txt test.robot Execution failed in Test Script {test1.txt} with 252 failing test(s) Execution failed in Test Script {test2.txt} with 252 failing test(s) I want to execute same test case with different input file parallelly. It should launch multiple instances of chrome and pass every single file to script ---
**Author:** ![bk-user](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/bk-user/32/1446_2.png) [@bk-user](https://forum.robotframework.org/u/bk-user)\ **Post date:** [20 June 2022 05:47 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/4 "2022-06-20T05:47:31Z")
How to execute one test case multiple time in parallel in Robot framework? I have single automated long test case in my suite. I want to execute same test case with different input file parallelly. It should launch multiple instances of chrome and pass every single file to the robot script. Its basically not suite level split .I have to launch only one test case on multiple instances of chrome. I have tried multiple thing. e.g. pabot but did not worked 1. Launching just single chorme pabot --processes 2 --listener robot-tc-listener --outputdir %PabotResu lts\_DIR% --output output.xml --report report.html --log log.html test.robot 2.Launching single test case sequncially 3 times pabot --processes 8 -d results -o Output.xml -t “Test-Task” . . . 3. Launching just single chorme pabot --processes 8 -d results -o Output.xml test.robot --include smoke 4.Launching just single chorme robot -t “_Test-Task_” … 5.Launching just single chorme pabot --processes 3 --testlevelsplit test.robot My Script looks as below- Test-Task [Tags] smoke Launch Application Select link to register Upload text file ${data\_file\_path} I understood pabot split execution on test case level. Any help would be highly appreciated, Thanks ---
**Author:** ![bk-user](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/bk-user/32/1446_2.png) [@bk-user](https://forum.robotframework.org/u/bk-user)\ **Post date:** [20 June 2022 12:33 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/5 "2022-06-20T12:33:52Z")
Looks like its limitation of robot framework. It is just launching 2 chrome instances parallelly pabot -d results -t “\*Test-Task” . . . . test.robot Ideally for each dots each should launch new instance of chrome. ---
**Author:** ![Wolfe1](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wolfe1/32/3386_2.png) [@Wolfe1](https://forum.robotframework.org/u/Wolfe1)\ **Post date:** [21 June 2022 12:35 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/6 "2022-06-21T12:35:07Z")
If you are using different input files for each run then you may be able to do this with argument files in pabot as per [https://groups.google.com/g/robotframework-users/c/aaVh77m-95Y](https://groups.google.com/g/robotframework-users/c/aaVh77m-95Y) [pabot command-line-options](https://github.com/mkorpela/pabot/blob/main/README.md#command-line-options) –argumentfile[INTEGER] [FILEPATH] “Run same suites with multiple [argumentfile](http://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html#argument-files) options.” ---
**Author:** ![bk-user](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/bk-user/32/1446_2.png) [@bk-user](https://forum.robotframework.org/u/bk-user)\ **Post date:** [22 June 2022 03:11 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/7 "2022-06-22T03:11:58Z")
@Wolfe1 I am different input file but I want to start parallely all chrome instances. So for 5 input file , it should launch 5 chrome ---
**Author:** ![Wolfe1](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wolfe1/32/3386_2.png) [@Wolfe1](https://forum.robotframework.org/u/Wolfe1)\ **Post date:** [22 June 2022 12:44 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/8 "2022-06-22T12:44:49Z")
When you say “input file” do you mean you have 5 different argument files to give? If so then I think what I listed above should work with something like this: `pabot --processes 5 --argumentfile1 argFile1 --argumentfile2 argFile2 --argumentfile3 argFile3 --argumentfile4 argFile4 --argumentfile5 argFile5 test.robot` That should run 5 parallel instances of test.robot, each using a different argfile ---
**Author:** ![bk-user](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/bk-user/32/1446_2.png) [@bk-user](https://forum.robotframework.org/u/bk-user)\ **Post date:** [22 June 2022 12:59 UTC](https://forum.robotframework.org/t/not-able-to-run-parallel-instances-of-chrome-using-robot-framework/4016/9 "2022-06-22T12:59:31Z")
@Wolfe1 I tried below command which is not launching chrome instance. In my case, agumentfile is different text file which I have to upload during UI script navigation. My text file has content which I have to upload those and content inside text file are not linked anywhere pabot --processes 3 --argumentfile1 test1.txt --argumentfile2 test2.txt --argumentfile3 test3.txt test.robot Below error Storing .pabotsuitenames file 2022-06-22 18:26:55.525576 [PID:8904] [0] [ID:1] EXECUTING test Script {test2.txt} 2022-06-22 18:26:55.525576 [PID:9004] [2] [ID:0] EXECUTING test Script {test1.txt} 2022-06-22 18:26:55.525576 [PID:10804] [1] [ID:2] EXECUTING test Script {test3.txt} 2022-06-22 18:26:56.516297 [PID:8904] [0] [ID:1] Execution failed in test Script {test2.txt} with 252 failing test(s) Lets connect if have time