minidaemon_client: 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/mvapich-psm/bin/minidaemon_client - from package: mvapich-psm
/usr/lib64/mvapich/bin/minidaemon_client - from package: mvapich
/usr/lib/mvapich/bin/minidaemon_client - from package: mvapich

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

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