scorep-backend-info: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/lib64/mpich/bin/scorep-backend-info - from package: scorep-mpich
/usr/lib64/openmpi/bin/scorep-backend-info - from package: scorep-openmpi
/usr/bin/scorep-backend-info - from package: scorep

You may install the required package with command yum install {package}

Error in other languages:
scorep-backend-info: bevel nie gevind nie
scorep-backend-info: comandă negăsită
scorep-backend-info: comando não encontrado
scorep-backend-info: commande introuvable
scorep-backend-info: command not found
scorep-backend-info: käsku ei ole
scorep-backend-info: không tìm thấy lệnh
scorep-backend-info: komanda nerasta
scorep-backend-info: Kommando nicht gefunden.
scorep-backend-info: kommandot finns inte
scorep-backend-info: komut yok
scorep-backend-info: nie znaleziono polecenia
scorep-backend-info: níor aimsíodh an t-ordú
scorep-backend-info: no se encontró la orden
scorep-backend-info: no s'ha trobat l'ordre
scorep-backend-info: opdracht niet gevonden
scorep-backend-info: parancs nem található
scorep-backend-info: perintah tidak ditemukan
scorep-backend-info: príkaz nenájdený
scorep-backend-info: příkaz nenalezen
scorep-backend-info: команда не найдена
scorep-backend-info: командата не е открита
scorep-backend-info: 命令找不到
scorep-backend-info: コマンドが見つかりません