diff --git a/plugins/nf-float/src/main/com/memverge/nextflow/CmdResult.groovy b/plugins/nf-float/src/main/com/memverge/nextflow/CmdResult.groovy
index b7dc391..004825b 100644
--- a/plugins/nf-float/src/main/com/memverge/nextflow/CmdResult.groovy
+++ b/plugins/nf-float/src/main/com/memverge/nextflow/CmdResult.groovy
@@ -94,8 +94,9 @@ class CmdResult {
             for (i in obj) {
                 def id = i.id as String
                 def status = i.status as String
-                def taskID = i.name as String
-                if (id && status) {
+                def tags = i.customTags as Map
+                String taskID = tags ? tags[FloatConf.NF_JOB_ID] : ""
+                if (id && status && taskID) {
                     ret[id] = new JobStatus(taskID, status)
                 }
             }
diff --git a/plugins/nf-float/src/main/com/memverge/nextflow/FloatConf.groovy b/plugins/nf-float/src/main/com/memverge/nextflow/FloatConf.groovy
index 086f370..aa08a79 100644
--- a/plugins/nf-float/src/main/com/memverge/nextflow/FloatConf.groovy
+++ b/plugins/nf-float/src/main/com/memverge/nextflow/FloatConf.groovy
@@ -29,6 +29,7 @@ class FloatConf {
     static String MMC_USERNAME = "MMC_USERNAME"
     static String MMC_PASSWORD = "MMC_PASSWORD"
     static String ADDR_SEP = ","
+    static String NF_JOB_ID = "nf-job-id"
 
     /** credentials for op center */
     String username
diff --git a/plugins/nf-float/src/main/com/memverge/nextflow/FloatGridExecutor.groovy b/plugins/nf-float/src/main/com/memverge/nextflow/FloatGridExecutor.groovy
index bf24910..083c599 100644
--- a/plugins/nf-float/src/main/com/memverge/nextflow/FloatGridExecutor.groovy
+++ b/plugins/nf-float/src/main/com/memverge/nextflow/FloatGridExecutor.groovy
@@ -200,6 +200,7 @@ class FloatGridExecutor extends AbstractGridExecutor {
     @Override
     List<String> getSubmitCommandLine(TaskRun task, Path scriptFile) {
         validateTaskConf(task.config)
+        String tag = "${FloatConf.NF_JOB_ID}:${floatJobs.getJobName(task.id)}"
         def cmd = getSubmitCmdPrefix()
         cmd << 'sbatch'
         cmd << '--dataVolume'
@@ -212,8 +213,8 @@ class FloatGridExecutor extends AbstractGridExecutor {
         cmd << getMem(task)
         cmd << '--job'
         cmd << scriptFile.toString()
-        cmd << '--name'
-        cmd << floatJobs.getJobName(task.id)
+        cmd << '--customTag'
+        cmd << tag
         cmd.addAll(getExtra(task))
         log.info "[float] submit job: ${toCmdString(cmd)}"
         return cmd
diff --git a/plugins/nf-float/src/main/com/memverge/nextflow/FloatJobs.groovy b/plugins/nf-float/src/main/com/memverge/nextflow/FloatJobs.groovy
index 24e1a88..fbb797d 100644
--- a/plugins/nf-float/src/main/com/memverge/nextflow/FloatJobs.groovy
+++ b/plugins/nf-float/src/main/com/memverge/nextflow/FloatJobs.groovy
@@ -42,7 +42,7 @@ class FloatJobs {
         job2oc = new ConcurrentHashMap<>()
         task2workDir = new ConcurrentHashMap<>()
         ocs = ocAddresses
-        def charset = (('A'..'Z')+('0'..'9')).join('')
+        def charset = (('a'..'z')+('0'..'9')).join('')
         taskPrefix = RandomStringUtils.random(
                 6, charset.toCharArray())
     }
diff --git a/plugins/nf-float/src/test/com/memverge/nextflow/CmdResultTest.groovy b/plugins/nf-float/src/test/com/memverge/nextflow/CmdResultTest.groovy
index 8d2ba06..2c6eefe 100644
--- a/plugins/nf-float/src/test/com/memverge/nextflow/CmdResultTest.groovy
+++ b/plugins/nf-float/src/test/com/memverge/nextflow/CmdResultTest.groovy
@@ -116,7 +116,11 @@ class CmdResultTest extends Specification {
                 "name": "cactus-c5d.large",                                                                                              
                 "user": "admin",                                                                                                         
                 "imageID": "docker.io/memverge/cactus:latest",                                                                           
-                "status": "FailToExecute"                                                                                                                                                                                                                                                                                                                         
+                "status": "FailToExecute",
+                "customTags": {
+                    "nf-job-id": "job-a",
+                    "a": "apple"
+                }                                                                                                                                                                                                                                                                                                                         
             },
             {
                 "id": "u5x3sSLe0p3OznGavmYu3",
@@ -124,7 +128,11 @@ class CmdResultTest extends Specification {
                 "workingHost": "3.143.251.235 (2Core4GB/Spot)",
                 "user": "admin",
                 "imageID": "docker.io/memverge/cactus:latest",
-                "status": "Executing"
+                "status": "Executing",
+                "customTags": {
+                    "b": "banana",
+                    "nf-job-id": "job-b"
+                }
             }
         ]"""
         def stMap = res.getQStatus()
@@ -133,9 +141,9 @@ class CmdResultTest extends Specification {
 
         then:
         st1.status == 'FailToExecute'
-        st1.taskID == 'cactus-c5d.large'
+        st1.taskID == 'job-a'
         st2.status == 'Executing'
-        st2.taskID == 'cactus-t3a.medium'
+        st2.taskID == 'job-b'
     }
 
     def "get queue empty"() {
diff --git a/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorMultiOCTest.groovy b/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorMultiOCTest.groovy
index fc17cc9..b01fab4 100644
--- a/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorMultiOCTest.groovy
+++ b/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorMultiOCTest.groovy
@@ -69,11 +69,11 @@ class FloatGridExecutorMultiOCTest extends Specification {
         cmd1.join(' ') == "float -a fb -u admin -p password sbatch " +
                 "--dataVolume ${dataVol} --image ${image} " +
                 "--cpu ${cpu} --mem ${mem} --job ${script}" +
-                " --name tJob-${taskID}"
+                " --customTag nf-job-id:tJob-${taskID}"
         cmd2.join(' ') == "float -a fa -u admin -p password sbatch " +
                 "--dataVolume ${dataVol} --image ${image} " +
                 "--cpu ${cpu} --mem ${mem} --job ${script}" +
-                " --name tJob-${taskID}"
+                " --customTag nf-job-id:tJob-${taskID}"
     }
 
     def "get queue status commands"() {
@@ -116,10 +116,10 @@ class FloatGridExecutorMultiOCTest extends Specification {
         cmd1.join(' ') == "float -a fb -u admin -p password sbatch " +
                 "--dataVolume ${dataVol} --image ${image} " +
                 "--cpu ${cpu} --mem ${mem} --job ${script}" +
-                " --name tJob-${taskID}"
+                " --customTag nf-job-id:tJob-${taskID}"
         cmd2.join(' ') == "float -a fa -u admin -p password sbatch " +
                 "--dataVolume ${dataVol} --image ${image} " +
                 "--cpu ${cpu} --mem ${mem} --job ${script}" +
-                " --name tJob-${taskID}"
+                " --customTag nf-job-id:tJob-${taskID}"
     }
 }
diff --git a/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorTest.groovy b/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorTest.groovy
index b80e73a..4bb6f17 100644
--- a/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorTest.groovy
+++ b/plugins/nf-float/src/test/com/memverge/nextflow/FloatGridExecutorTest.groovy
@@ -53,7 +53,7 @@ class FloatGridExecutorTest extends Specification {
     }
 
     def jobID(TaskId id) {
-        return "$tJob-$id"
+        return "${FloatConf.NF_JOB_ID}:$tJob-$id"
     }
 
     def "get the prefix of kill command"() {
@@ -133,7 +133,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', cpu.toString(),
                           '--mem', mem.toString(),
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
     }
 
     def "add default local mount point"() {
@@ -160,7 +160,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', cpu.toString(),
                           '--mem', mem.toString(),
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
     }
 
     def "use cpus, memory and container"() {
@@ -187,7 +187,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', '8',
                           '--mem', '16',
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
     }
 
     def "add common extras"() {
@@ -216,7 +216,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', '2',
                           '--mem', '4',
                           '--job', script,
-                          '--name', jobID(taskID),
+                          '--customTag', jobID(taskID),
                           '-t', 'small', '-f'].join(" ")
     }
 
@@ -242,7 +242,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', '2',
                           '--mem', '4',
                           '--job', script,
-                          '--name', jobID(taskID),
+                          '--customTag', jobID(taskID),
                           '-f', '-t', 'small'].join(' ')
     }
 
@@ -259,7 +259,7 @@ class FloatGridExecutorTest extends Specification {
 
         when:
         task.config = [nfs  : nfs,
-                       extra: '--name hello',] as TaskConfig
+                       extra: '--customTag hello',] as TaskConfig
         task.id = taskID
         def cmd = exec.getSubmitCommandLine(task, Paths.get(script))
 
@@ -273,9 +273,9 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', '2',
                           '--mem', '4',
                           '--job', script,
-                          '--name', jobID(taskID),
+                          '--customTag', jobID(taskID),
                           '-t', 'small', '-f',
-                          '--name', 'hello'].join(' ')
+                          '--customTag', 'hello'].join(' ')
     }
 
     def "config level cpu and memory"() {
@@ -307,7 +307,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', cpu.toString(),
                           '--mem', mem.toString(),
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
     }
 
     def "use default cpu, memory and image"() {
@@ -337,7 +337,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', '2',
                           '--mem', '4',
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
     }
 
     def "use default nfs and work dir"() {
@@ -367,7 +367,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', cpu.toString(),
                           '--mem', mem.toString(),
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
     }
 
     def "parse data volume"() {
@@ -399,7 +399,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', cpu.toString(),
                           '--mem', mem.toString(),
                           '--job', script,
-                          '--name', jobID(taskID),
+                          '--customTag', jobID(taskID),
                           '-M', 'cpu.upperBoundDuration=5s',
                           '--dataVolume', '"[size=50]":/BWA_BASE'].join(' ')
     }
@@ -414,70 +414,100 @@ class FloatGridExecutorTest extends Specification {
                 "name": "tJob-0",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Submitted"
+                "status": "Submitted",
+                "customTags": {
+                    "nf-job-id": "tJob-0"
+                }
             },
             {                                                           
                 "id": "task1",                          
                 "name": "tJob-1",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Initializing"
+                "status": "Initializing",
+                "customTags": {
+                    "nf-job-id": "tJob-1"
+                }
             },
             {                                                           
                 "id": "task2",                          
                 "name": "tJob-2",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Executing"
+                "status": "Executing",
+                "customTags": {
+                    "nf-job-id": "tJob-2"
+                }
             },
             {                                                           
                 "id": "task3",                          
                 "name": "tJob-3",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Floating"
+                "status": "Floating",
+                "customTags": {
+                    "nf-job-id": "tJob-3"
+                }
             },
             {                                                           
                 "id": "task4",                          
                 "name": "tJob-4",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Completed"
+                "status": "Completed",
+                "customTags": {
+                    "nf-job-id": "tJob-4"
+                }
             },
             {                                                           
                 "id": "task5",                          
                 "name": "tJob-5",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Cancelled"
+                "status": "Cancelled",
+                "customTags": {
+                    "nf-job-id": "tJob-5"
+                }
             },
             {                                                           
                 "id": "task6",                          
                 "name": "tJob-6",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "FailToComplete"
+                "status": "FailToComplete",
+                "customTags": {
+                    "nf-job-id": "tJob-6"
+                }
             },
             {                                                           
                 "id": "task7",                          
                 "name": "tJob-7",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "FailToExecute"
+                "status": "FailToExecute",
+                "customTags": {
+                    "nf-job-id": "tJob-7"
+                }
             },
             {                                                           
                 "id": "task8",                          
                 "name": "tJob-8",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Completed"
+                "status": "Completed",
+                "customTags": {
+                    "nf-job-id": "tJob-8"
+                }
             },
             {                                                           
                 "id": "task9",                          
                 "name": "tJob-9",                                                                                            
                 "user": "admin",                                        
                 "imageID": "docker.io/memverge/cactus:latest",          
-                "status": "Starting"
+                "status": "Starting",
+                "customTags": {
+                    "nf-job-id": "tJob-9"
+                }
             }
         ]                          
         """.stripIndent()
@@ -555,7 +585,7 @@ class FloatGridExecutorTest extends Specification {
                           '--cpu', cpu.toString(),
                           '--mem', mem.toString(),
                           '--job', script,
-                          '--name', jobID(taskID)].join(' ')
+                          '--customTag', jobID(taskID)].join(' ')
 
         cleanup:
         setEnv('MMC_ADDRESS', '')