gpiv_aint: 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 Debian possible default full paths are:

/usr/bin/gpiv_aint - from package: gpivtools-mpi
/usr/bin/gpiv_aint - from package: gpivtools

You may install the required package with command apt-get install {package}

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