clogTOslog2: 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/mpich2/bin/clogTOslog2 - from package: mpich2-devel
/usr/lib/mpich2/bin/clogTOslog2 - from package: mpich2-devel
/usr/lib64/mvapich/bin/clogTOslog2 - from package: mvapich
/usr/lib/mvapich/bin/clogTOslog2 - from package: mvapich

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

Error in other languages:
clogTOslog2: bevel nie gevind nie
clogTOslog2: comandă negăsită
clogTOslog2: comando não encontrado
clogTOslog2: commande introuvable
clogTOslog2: command not found
clogTOslog2: käsku ei ole
clogTOslog2: không tìm thấy lệnh
clogTOslog2: komanda nerasta
clogTOslog2: Kommando nicht gefunden.
clogTOslog2: kommandot finns inte
clogTOslog2: komut yok
clogTOslog2: nie znaleziono polecenia
clogTOslog2: níor aimsíodh an t-ordú
clogTOslog2: no se encontró la orden
clogTOslog2: no s'ha trobat l'ordre
clogTOslog2: opdracht niet gevonden
clogTOslog2: parancs nem található
clogTOslog2: perintah tidak ditemukan
clogTOslog2: príkaz nenájdený
clogTOslog2: příkaz nenalezen
clogTOslog2: команда не найдена
clogTOslog2: командата не е открита
clogTOslog2: 命令找不到
clogTOslog2: コマンドが見つかりません